JOSEP OLIVA - Academia.edu (original) (raw)

Papers by JOSEP OLIVA

Research paper thumbnail of Implantes de zirconia y restauraciones cerámicas completas para la sustitución estética de los incisivos centrales del maxilar superior

ceraroot.com

Resumen La cerámica se ha empleado en odontología y medicina durante muchos años. En la actualida... more Resumen La cerámica se ha empleado en odontología y medicina durante muchos años. En la actualidad, una de las cerámicas más populares es la zirconia, debido a que sus extraordinarias propiedades mecánicas lo hacen idóneo para numerosas indicaciones ...

Research paper thumbnail of Computer-Aided Design/Computer-Aided Manufacturing Surgical Guidance for Placement of Dental Implants: Case Report

Implant Dentistry, 2007

Dental implant rehabilitation faces increasing prosthetic and esthetic demands, requiring precise... more Dental implant rehabilitation faces increasing prosthetic and esthetic demands, requiring precise surgical planning and placement. Presurgical treatment evaluation can now be accomplished using 3-dimensional computed tomography imaging. Although software has been developed to assist in implant selection and localization, transferring this information to the surgical field has remained a difficult task. Over the last few years, computer-aided design and manufacturing have made it possible to use data from computed tomography in order to transfer virtual implant placement to the surgery. One of these techniques utilizes a small computer-driven drilling mechanism that transfers implant planning on a laboratory model. This novel approach may be advantageous once available in dental laboratories and/or offices. This report presents the method and, for the first time, illustrates it with a fully edentulous advanced clinical case. Resulting clinical benefits over traditional procedures are discussed.

Research paper thumbnail of 15-Year Post-Market Clinical Follow-up Study of 1,828 Ceramic (Zirconia) Implants in Humans

International Journal of Oral and Maxillofacial Implants

C eramic dental implants made out of zirconia are a viable alternative for tooth replacement, tho... more C eramic dental implants made out of zirconia are a viable alternative for tooth replacement, though titanium dental implants have been the gold standard since the 1970s. Ceramic implants started to be used in the early 2000s in patients, and since then, the use of this metal-free solution has been growing and becoming more popular. Moreover, the future market trends 1 suggest that the use of ceramic implants is expected to keep growing in the near future. One of the main advantages of ceramic implants is that they are metal-free. Patients are becoming more concerned about the placement of metals into the body due to potentially harmful long-term effects of the oxidative metal particles accumulating in the surrounding tissues and other parts of the body. 2,3 The more natural look of ceramic implants also offers a potential esthetic advantage. 4 A further argument is that for one-piece ceramic dental implants, the number of additional prosthetic components needed to restore a case can be reduced to zero. In contrast, multiple components and accessories are required to restore a twopiece titanium dental implant; thus, there is a significant reduction of the treatment cost. Finally, the mechanical properties of one-piece ceramic dental implants are comparable to titanium implants and are reported to be safe for everyday use in patients for tooth replacement treatments. 5 Recent mid-term clinical trials with one-piece ceramic implants from different manufacturers have reported survival rates similar to titanium implants. Bormann et al 6 reported a survival rate of 97.5% after 3 years, and Bethke et al 5 reported a survival rate of 94.3% after 5 years. The aim of this post-market clinical follow-up (PMCF) study was to provide long-term clinical data for the CeraRoot ceramic dental implant system.

Research paper thumbnail of 15-Year Post-Market Clinical Follow-up Study of 1,828 Ceramic (Zirconia) Implants in Humans

JOMI, 2023

C eramic dental implants made out of zirconia are a viable alternative for tooth replacement, tho... more C eramic dental implants made out of zirconia are a viable alternative for tooth replacement, though titanium dental implants have been the gold standard since the 1970s. Ceramic implants started to be used in the early 2000s in patients, and since then, the use of this metal-free solution has been growing and becoming more popular. Moreover, the future market trends 1 suggest that the use of ceramic implants is expected to keep growing in the near future. One of the main advantages of ceramic implants is that they are metal-free. Patients are becoming more concerned about the placement of metals into the body due to potentially harmful long-term effects of the oxidative metal particles accumulating in the surrounding tissues and other parts of the body. 2,3 The more natural look of ceramic implants also offers a potential esthetic advantage. 4 A further argument is that for one-piece ceramic dental implants, the number of additional prosthetic components needed to restore a case can be reduced to zero. In contrast, multiple components and accessories are required to restore a twopiece titanium dental implant; thus, there is a significant reduction of the treatment cost. Finally, the mechanical properties of one-piece ceramic dental implants are comparable to titanium implants and are reported to be safe for everyday use in patients for tooth replacement treatments. 5 Recent mid-term clinical trials with one-piece ceramic implants from different manufacturers have reported survival rates similar to titanium implants. Bormann et al 6 reported a survival rate of 97.5% after 3 years, and Bethke et al 5 reported a survival rate of 94.3% after 5 years. The aim of this post-market clinical follow-up (PMCF) study was to provide long-term clinical data for the CeraRoot ceramic dental implant system.

Research paper thumbnail of Implantes ovoideos de circonio: Diseño anatómico para la sustitución de premolares

Revista Internacional de …, 2008

Tradicionalmente se han sustituido los dientes ausentes y no recuperables con implantes cilíndric... more Tradicionalmente se han sustituido los dientes ausentes y no recuperables con implantes cilíndricos roscados. Los fabricantes de implantes han intentado diseñar implantes que estimulen mejor la anatomía dental, aunque las zonas del cuello y de la conexión con el ...

Research paper thumbnail of Rehabilitación oral total con implantes dentales de circonio en una paciente alérgica al titanio. Caso clínico de un estudio clínico en curso

The European Journal of Esthetic Dentistry, Oct 1, 2010

Research paper thumbnail of Zirconia implants and all-ceramic restorations for the esthetic replacement of the maxillary central incisors

The European journal of esthetic dentistry : official journal of the European Academy of Esthetic Dentistry, 2008

Ceramics have been used in dentistry and medicine for many years. Today, one of the most popular ... more Ceramics have been used in dentistry and medicine for many years. Today, one of the most popular ceramics is zirconia because of its outstanding mechanical properties, which make it suitable for many indications formerly reserved for metals. Zirconia-based ceramics have been used for many years as the core for single crowns and long-span fixed prostheses. Zirconia-based ceramics have also been used as implants for hip replacements and finger, toe, and wrist joints. Recently, some articles in the dental literature suggest the possible use of zirconia implants for tooth replacement. The present case report illustrates the results that can be achieved using rough-surface zirconia implants in an esthetically demanding case. The 28-year-old male patient required replacement of the maxillary central incisors. Two rough-surface zirconia implants (CeraRoot) were used to immediately replace the extracted teeth. Immediate provisional restorations were placed for a period of 3 months until the...

Research paper thumbnail of All-on-three delayed implant loading concept for the completely edentulous maxilla and mandible: a retrospective 5-year follow-up study

The International journal of oral & maxillofacial implants

Full-arch implant rehabilitation with four implants has become an accepted modality of treatment ... more Full-arch implant rehabilitation with four implants has become an accepted modality of treatment for fixed restorations in totally edentulous mandibles or maxillas; however, there is little scientific evidence on the outcome for the same treatment with three implants. The purpose of this study was to evaluate a protocol for three implants (all-on-three) supporting a delayed loaded fixed prosthesis in the completely edentulous maxilla, mandible, or both. This retrospective clinical study included 17 patients with 72 implants to restore 24 fully edentulous arches. The implants were loaded 4 months after surgery with fixed zirconia prostheses. A 5-year follow-up was performed. No implants were lost, giving a 100% success rate. The marginal bone loss was, on average, 0.53 mm (SD, 0.32 mm) for the internal connection implants and 0.84 mm (SD, 0.62 mm) for the external connection implants. Within the limits of this small group clinical study, the high survival rate of the all-on-three pro...

Research paper thumbnail of Full-mouth oral rehabilitation in a titanium allergy patient using zirconium oxide dental implants and zirconium oxide restorations. A case report from an ongoing clinical study

The European journal of esthetic dentistry : official journal of the European Academy of Esthetic Dentistry, 2010

This case report describes the full-mouth oral rehabilitation of a titanium allergic patient. The... more This case report describes the full-mouth oral rehabilitation of a titanium allergic patient. The patient was a young female with amelogenesis imperfecta who had generalized massive tooth destruction. All teeth in the mouth were extracted and 15 CeraRoot acid-etched (ICE surface) implants were placed (seven implants in the maxilla and eight implants in the mandible). No immediate temporaries were placed. Temporaries were placed 3 months after surgery, and left in function for 2 months. The case was finally restored with zirconium oxide bridges and ceramic veneering (three bridges in the maxilla and another three in the mandible). The 3-year follow-up showed good stability of soft tissues and bone level. Zirconium oxide implants and restorations might be an alternative for the oral rehabilitation of titanium allergic patients.

Research paper thumbnail of Five-year success rate of 831 consecutively placed Zirconia dental implants in humans: a comparison of three different rough surfaces

The International journal of oral & maxillofacial implants

The aim of this study was to evaluate the 5-year success rate of zirconia (ZrO2) implants with th... more The aim of this study was to evaluate the 5-year success rate of zirconia (ZrO2) implants with three different kinds of surfaces. One-piece zirconia dental implants (CeraRoot) with three different roughened surfaces were designed and manufactured for this study: coated, uncoated, and acid-etched. Five different implant designs were manufactured. Standard or flapless surgical procedures were used for implant placement. Simultaneous bone augmentation or sinus elevation was performed when bone height or width was insufficient. Definitive all-ceramic restorations were placed 4 months after implant placement (8 months or more for implants when bone augmentation or sinus elevation was performed). The implants were followed up to 5 years (mean, 3.40 +/- 0.21). In all, 831 implants were placed in 378 patients with a mean age of 48 years. The overall implant success rate after 5 years of follow-up was 95% (92.77% for uncoated implants, 93.57% for coated implants, and 97.60% for acid-etched i...

Research paper thumbnail of Ovoid zirconia implants: anatomic design for premolar replacement

The International journal of periodontics & restorative dentistry, 2008

Traditionally, missing and hopeless teeth have been replaced by threaded cylindric implants. Impl... more Traditionally, missing and hopeless teeth have been replaced by threaded cylindric implants. Implant manufacturers have tried to design implants that more closely resemble tooth anatomy, but the neck and abutment connection areas have not changed much in the past 30 years. Some companies have produced titanium implants with scalloped contours, but the clinical application of this remains uncertain. The combination of anatomically oriented implant designs, newer biomaterials such as zirconia ceramics, and modified surfaces has resulted in dental implants that can be specially designed for the replacement of individual teeth in both arches. Ovoid zirconia implants have been specially developed and produced to replace missing or hopeless premolars. This article discusses the treatment of a patient with an ovoid zirconia implant (CeraRoot Type 14) to replace a premolar.

Research paper thumbnail of One-year follow-up of first consecutive 100 zirconia dental implants in humans: a comparison of 2 different rough surfaces

The International journal of oral & maxillofacial implants

The aim of this study was to evaluate the success rate of 100 consecutive zirconia dental implant... more The aim of this study was to evaluate the success rate of 100 consecutive zirconia dental implants with 2 different rough surfaces after 1 year of follow-up. One-piece zirconia dental implants (CeraRoot, Barcelona, Spain) with 1 of 2 different roughened surfaces were designed and manufactured for this study. Five different implant designs were manufactured. Standard or flapless surgical procedures were used for implant placement. Simultaneous bone augmentation or sinus elevation were performed in the cases where bone height or width was insufficient. Implants in the anterior region (canine to canine) were immediately restored with provisional prostheses. Implants placed using less than 35 N torque were splinted with composite resin using an etched and bonded approach to the neighboring teeth or implants to minimize implant mobility and failure. Definitive all-ceramic restorations were placed 4 months after implant placement (8 months for implants where bone augmentation or sinus ele...

Research paper thumbnail of Replacement of congenically missing maxillary permanent canine with a zirconium oxide dental implant and crown. A case report from an ongoing clinical study

Oral Surgery, 2008

This article describes a case report of an ongoing clinical investigation with zirconium oxide (Z... more This article describes a case report of an ongoing clinical investigation with zirconium oxide (ZrO2) dental implants. The patient was a young female who was missing an upper right canine. A one-piece (implant + abutment) ZrO2 implant (CeraRoot) with acid-etched surface (ICE surface ®) was implanted. The preoperative situation was ideal in terms of soft tissue and bone preservation, and the surgery was done transmucosally without having to raise a flap. The soft tissue healed successfully around the implants within few days. The case was finally restored with a ZrO2 crown (CeraCrown) and ceramic characterisation.

Research paper thumbnail of Osseointegration of Zirconia (Y-TZP) Dental Implants: A Histologic, Histomorphometric and Removal Torque Study in the Hip of Sheep

International Journal of Oral Implantology & Clinical Research, 2013

Objectives: The purpose of the present study was to demonstrate the biocompatibility and rigid os... more Objectives: The purpose of the present study was to demonstrate the biocompatibility and rigid osseointegration of a zirconia (Y-TZP) dental implant with acid-etched surface. Materials and methods: Eight zirconia (Y-TZP) implants (CeraRoot, Barcelona) were inserted in the hip of an adult sheep. The animal was sacrificed after 2 months. Four implants were used for histology and histomorphometric analysis, and the other four implants were used for removal torque test (RTQ). Results: The histological evaluation showed a direct bone to implant contact (BIC) with no signs of inflammatory or foreign body reaction. The histomorphometric analysis values ranged from 79.5 to 79.9% of BIC. The RTQ showed values ranging from 75 to 83 Ncm. Discussion: In this animal study, the biocompatibility of CeraRoot zirconia (Y-TZP) implants was demonstrated with the histologic observations of healthy bone tissue in direct contact with the zirconia (Y-TZP) implant surface. Moreover, the histomorphometric analysis and the RTQ confirmed a rigid fixation of the implant within the bone. Comparative studies with acid-etched titanium implants are needed to further evaluate the characteristics of CeraRoot zirconia dental implants.

Research paper thumbnail of Five-year success rate of 831 consecutively placed zirconia dental implants in humans: a comparison of three different rough surfaces

JOMI, 2010

The aim of this study was to evaluate the 5-year success rate of zirconia (ZrO 2 ) implants with ... more The aim of this study was to evaluate the 5-year success rate of zirconia (ZrO 2 ) implants with three different kinds of surfaces. Materials and Methods: One-piece zirconia dental implants (Cera-Root) with three different roughened surfaces were designed and manufactured for this study : coated, uncoated, and acid-etched. Five different implant designs were manufactured. Standard or flapless surgical procedures were used for implant placement. Simultaneous bone augmentation or sinus elevation was performed when bone height or width was insufficient. Definitive all-ceramic restorations were placed 4 months after implant placement (8 months or more for implants when bone augmentation or sinus elevation was performed). The implants were followed up to 5 years (mean, 3.40 ± 0.21). Results: In all, 831 implants were placed in 378 patients with a mean age of 48 years. The overall implant success rate after 5 years of follow-up was 95% (92.77% for uncoated implants, 93.57% for coated implants, and 97.60% for acid-etched implants). The success rate of the acid-etched surface group was significantly better than that of the other two. Conclusion: From this midterm investigation, it can be concluded that zirconia dental implants with roughened surfaces might be a viable alternative for tooth replacement. Further follow-up is needed to evaluate the long-term success rates of the implant surfaces studied. INT J ORAL MAXILLOFAC IMPLANTS 2010;25:336-344

Research paper thumbnail of Implantes de zirconia y restauraciones cerámicas completas para la sustitución estética de los incisivos centrales del maxilar superior

ceraroot.com

Resumen La cerámica se ha empleado en odontología y medicina durante muchos años. En la actualida... more Resumen La cerámica se ha empleado en odontología y medicina durante muchos años. En la actualidad, una de las cerámicas más populares es la zirconia, debido a que sus extraordinarias propiedades mecánicas lo hacen idóneo para numerosas indicaciones ...

Research paper thumbnail of Computer-Aided Design/Computer-Aided Manufacturing Surgical Guidance for Placement of Dental Implants: Case Report

Implant Dentistry, 2007

Dental implant rehabilitation faces increasing prosthetic and esthetic demands, requiring precise... more Dental implant rehabilitation faces increasing prosthetic and esthetic demands, requiring precise surgical planning and placement. Presurgical treatment evaluation can now be accomplished using 3-dimensional computed tomography imaging. Although software has been developed to assist in implant selection and localization, transferring this information to the surgical field has remained a difficult task. Over the last few years, computer-aided design and manufacturing have made it possible to use data from computed tomography in order to transfer virtual implant placement to the surgery. One of these techniques utilizes a small computer-driven drilling mechanism that transfers implant planning on a laboratory model. This novel approach may be advantageous once available in dental laboratories and/or offices. This report presents the method and, for the first time, illustrates it with a fully edentulous advanced clinical case. Resulting clinical benefits over traditional procedures are discussed.

Research paper thumbnail of 15-Year Post-Market Clinical Follow-up Study of 1,828 Ceramic (Zirconia) Implants in Humans

International Journal of Oral and Maxillofacial Implants

C eramic dental implants made out of zirconia are a viable alternative for tooth replacement, tho... more C eramic dental implants made out of zirconia are a viable alternative for tooth replacement, though titanium dental implants have been the gold standard since the 1970s. Ceramic implants started to be used in the early 2000s in patients, and since then, the use of this metal-free solution has been growing and becoming more popular. Moreover, the future market trends 1 suggest that the use of ceramic implants is expected to keep growing in the near future. One of the main advantages of ceramic implants is that they are metal-free. Patients are becoming more concerned about the placement of metals into the body due to potentially harmful long-term effects of the oxidative metal particles accumulating in the surrounding tissues and other parts of the body. 2,3 The more natural look of ceramic implants also offers a potential esthetic advantage. 4 A further argument is that for one-piece ceramic dental implants, the number of additional prosthetic components needed to restore a case can be reduced to zero. In contrast, multiple components and accessories are required to restore a twopiece titanium dental implant; thus, there is a significant reduction of the treatment cost. Finally, the mechanical properties of one-piece ceramic dental implants are comparable to titanium implants and are reported to be safe for everyday use in patients for tooth replacement treatments. 5 Recent mid-term clinical trials with one-piece ceramic implants from different manufacturers have reported survival rates similar to titanium implants. Bormann et al 6 reported a survival rate of 97.5% after 3 years, and Bethke et al 5 reported a survival rate of 94.3% after 5 years. The aim of this post-market clinical follow-up (PMCF) study was to provide long-term clinical data for the CeraRoot ceramic dental implant system.

Research paper thumbnail of 15-Year Post-Market Clinical Follow-up Study of 1,828 Ceramic (Zirconia) Implants in Humans

JOMI, 2023

C eramic dental implants made out of zirconia are a viable alternative for tooth replacement, tho... more C eramic dental implants made out of zirconia are a viable alternative for tooth replacement, though titanium dental implants have been the gold standard since the 1970s. Ceramic implants started to be used in the early 2000s in patients, and since then, the use of this metal-free solution has been growing and becoming more popular. Moreover, the future market trends 1 suggest that the use of ceramic implants is expected to keep growing in the near future. One of the main advantages of ceramic implants is that they are metal-free. Patients are becoming more concerned about the placement of metals into the body due to potentially harmful long-term effects of the oxidative metal particles accumulating in the surrounding tissues and other parts of the body. 2,3 The more natural look of ceramic implants also offers a potential esthetic advantage. 4 A further argument is that for one-piece ceramic dental implants, the number of additional prosthetic components needed to restore a case can be reduced to zero. In contrast, multiple components and accessories are required to restore a twopiece titanium dental implant; thus, there is a significant reduction of the treatment cost. Finally, the mechanical properties of one-piece ceramic dental implants are comparable to titanium implants and are reported to be safe for everyday use in patients for tooth replacement treatments. 5 Recent mid-term clinical trials with one-piece ceramic implants from different manufacturers have reported survival rates similar to titanium implants. Bormann et al 6 reported a survival rate of 97.5% after 3 years, and Bethke et al 5 reported a survival rate of 94.3% after 5 years. The aim of this post-market clinical follow-up (PMCF) study was to provide long-term clinical data for the CeraRoot ceramic dental implant system.

Research paper thumbnail of Implantes ovoideos de circonio: Diseño anatómico para la sustitución de premolares

Revista Internacional de …, 2008

Tradicionalmente se han sustituido los dientes ausentes y no recuperables con implantes cilíndric... more Tradicionalmente se han sustituido los dientes ausentes y no recuperables con implantes cilíndricos roscados. Los fabricantes de implantes han intentado diseñar implantes que estimulen mejor la anatomía dental, aunque las zonas del cuello y de la conexión con el ...

Research paper thumbnail of Rehabilitación oral total con implantes dentales de circonio en una paciente alérgica al titanio. Caso clínico de un estudio clínico en curso

The European Journal of Esthetic Dentistry, Oct 1, 2010

Research paper thumbnail of Zirconia implants and all-ceramic restorations for the esthetic replacement of the maxillary central incisors

The European journal of esthetic dentistry : official journal of the European Academy of Esthetic Dentistry, 2008

Ceramics have been used in dentistry and medicine for many years. Today, one of the most popular ... more Ceramics have been used in dentistry and medicine for many years. Today, one of the most popular ceramics is zirconia because of its outstanding mechanical properties, which make it suitable for many indications formerly reserved for metals. Zirconia-based ceramics have been used for many years as the core for single crowns and long-span fixed prostheses. Zirconia-based ceramics have also been used as implants for hip replacements and finger, toe, and wrist joints. Recently, some articles in the dental literature suggest the possible use of zirconia implants for tooth replacement. The present case report illustrates the results that can be achieved using rough-surface zirconia implants in an esthetically demanding case. The 28-year-old male patient required replacement of the maxillary central incisors. Two rough-surface zirconia implants (CeraRoot) were used to immediately replace the extracted teeth. Immediate provisional restorations were placed for a period of 3 months until the...

Research paper thumbnail of All-on-three delayed implant loading concept for the completely edentulous maxilla and mandible: a retrospective 5-year follow-up study

The International journal of oral & maxillofacial implants

Full-arch implant rehabilitation with four implants has become an accepted modality of treatment ... more Full-arch implant rehabilitation with four implants has become an accepted modality of treatment for fixed restorations in totally edentulous mandibles or maxillas; however, there is little scientific evidence on the outcome for the same treatment with three implants. The purpose of this study was to evaluate a protocol for three implants (all-on-three) supporting a delayed loaded fixed prosthesis in the completely edentulous maxilla, mandible, or both. This retrospective clinical study included 17 patients with 72 implants to restore 24 fully edentulous arches. The implants were loaded 4 months after surgery with fixed zirconia prostheses. A 5-year follow-up was performed. No implants were lost, giving a 100% success rate. The marginal bone loss was, on average, 0.53 mm (SD, 0.32 mm) for the internal connection implants and 0.84 mm (SD, 0.62 mm) for the external connection implants. Within the limits of this small group clinical study, the high survival rate of the all-on-three pro...

Research paper thumbnail of Full-mouth oral rehabilitation in a titanium allergy patient using zirconium oxide dental implants and zirconium oxide restorations. A case report from an ongoing clinical study

The European journal of esthetic dentistry : official journal of the European Academy of Esthetic Dentistry, 2010

This case report describes the full-mouth oral rehabilitation of a titanium allergic patient. The... more This case report describes the full-mouth oral rehabilitation of a titanium allergic patient. The patient was a young female with amelogenesis imperfecta who had generalized massive tooth destruction. All teeth in the mouth were extracted and 15 CeraRoot acid-etched (ICE surface) implants were placed (seven implants in the maxilla and eight implants in the mandible). No immediate temporaries were placed. Temporaries were placed 3 months after surgery, and left in function for 2 months. The case was finally restored with zirconium oxide bridges and ceramic veneering (three bridges in the maxilla and another three in the mandible). The 3-year follow-up showed good stability of soft tissues and bone level. Zirconium oxide implants and restorations might be an alternative for the oral rehabilitation of titanium allergic patients.

Research paper thumbnail of Five-year success rate of 831 consecutively placed Zirconia dental implants in humans: a comparison of three different rough surfaces

The International journal of oral & maxillofacial implants

The aim of this study was to evaluate the 5-year success rate of zirconia (ZrO2) implants with th... more The aim of this study was to evaluate the 5-year success rate of zirconia (ZrO2) implants with three different kinds of surfaces. One-piece zirconia dental implants (CeraRoot) with three different roughened surfaces were designed and manufactured for this study: coated, uncoated, and acid-etched. Five different implant designs were manufactured. Standard or flapless surgical procedures were used for implant placement. Simultaneous bone augmentation or sinus elevation was performed when bone height or width was insufficient. Definitive all-ceramic restorations were placed 4 months after implant placement (8 months or more for implants when bone augmentation or sinus elevation was performed). The implants were followed up to 5 years (mean, 3.40 +/- 0.21). In all, 831 implants were placed in 378 patients with a mean age of 48 years. The overall implant success rate after 5 years of follow-up was 95% (92.77% for uncoated implants, 93.57% for coated implants, and 97.60% for acid-etched i...

Research paper thumbnail of Ovoid zirconia implants: anatomic design for premolar replacement

The International journal of periodontics & restorative dentistry, 2008

Traditionally, missing and hopeless teeth have been replaced by threaded cylindric implants. Impl... more Traditionally, missing and hopeless teeth have been replaced by threaded cylindric implants. Implant manufacturers have tried to design implants that more closely resemble tooth anatomy, but the neck and abutment connection areas have not changed much in the past 30 years. Some companies have produced titanium implants with scalloped contours, but the clinical application of this remains uncertain. The combination of anatomically oriented implant designs, newer biomaterials such as zirconia ceramics, and modified surfaces has resulted in dental implants that can be specially designed for the replacement of individual teeth in both arches. Ovoid zirconia implants have been specially developed and produced to replace missing or hopeless premolars. This article discusses the treatment of a patient with an ovoid zirconia implant (CeraRoot Type 14) to replace a premolar.

Research paper thumbnail of One-year follow-up of first consecutive 100 zirconia dental implants in humans: a comparison of 2 different rough surfaces

The International journal of oral & maxillofacial implants

The aim of this study was to evaluate the success rate of 100 consecutive zirconia dental implant... more The aim of this study was to evaluate the success rate of 100 consecutive zirconia dental implants with 2 different rough surfaces after 1 year of follow-up. One-piece zirconia dental implants (CeraRoot, Barcelona, Spain) with 1 of 2 different roughened surfaces were designed and manufactured for this study. Five different implant designs were manufactured. Standard or flapless surgical procedures were used for implant placement. Simultaneous bone augmentation or sinus elevation were performed in the cases where bone height or width was insufficient. Implants in the anterior region (canine to canine) were immediately restored with provisional prostheses. Implants placed using less than 35 N torque were splinted with composite resin using an etched and bonded approach to the neighboring teeth or implants to minimize implant mobility and failure. Definitive all-ceramic restorations were placed 4 months after implant placement (8 months for implants where bone augmentation or sinus ele...

Research paper thumbnail of Replacement of congenically missing maxillary permanent canine with a zirconium oxide dental implant and crown. A case report from an ongoing clinical study

Oral Surgery, 2008

This article describes a case report of an ongoing clinical investigation with zirconium oxide (Z... more This article describes a case report of an ongoing clinical investigation with zirconium oxide (ZrO2) dental implants. The patient was a young female who was missing an upper right canine. A one-piece (implant + abutment) ZrO2 implant (CeraRoot) with acid-etched surface (ICE surface ®) was implanted. The preoperative situation was ideal in terms of soft tissue and bone preservation, and the surgery was done transmucosally without having to raise a flap. The soft tissue healed successfully around the implants within few days. The case was finally restored with a ZrO2 crown (CeraCrown) and ceramic characterisation.

Research paper thumbnail of Osseointegration of Zirconia (Y-TZP) Dental Implants: A Histologic, Histomorphometric and Removal Torque Study in the Hip of Sheep

International Journal of Oral Implantology & Clinical Research, 2013

Objectives: The purpose of the present study was to demonstrate the biocompatibility and rigid os... more Objectives: The purpose of the present study was to demonstrate the biocompatibility and rigid osseointegration of a zirconia (Y-TZP) dental implant with acid-etched surface. Materials and methods: Eight zirconia (Y-TZP) implants (CeraRoot, Barcelona) were inserted in the hip of an adult sheep. The animal was sacrificed after 2 months. Four implants were used for histology and histomorphometric analysis, and the other four implants were used for removal torque test (RTQ). Results: The histological evaluation showed a direct bone to implant contact (BIC) with no signs of inflammatory or foreign body reaction. The histomorphometric analysis values ranged from 79.5 to 79.9% of BIC. The RTQ showed values ranging from 75 to 83 Ncm. Discussion: In this animal study, the biocompatibility of CeraRoot zirconia (Y-TZP) implants was demonstrated with the histologic observations of healthy bone tissue in direct contact with the zirconia (Y-TZP) implant surface. Moreover, the histomorphometric analysis and the RTQ confirmed a rigid fixation of the implant within the bone. Comparative studies with acid-etched titanium implants are needed to further evaluate the characteristics of CeraRoot zirconia dental implants.

Research paper thumbnail of Five-year success rate of 831 consecutively placed zirconia dental implants in humans: a comparison of three different rough surfaces

JOMI, 2010

The aim of this study was to evaluate the 5-year success rate of zirconia (ZrO 2 ) implants with ... more The aim of this study was to evaluate the 5-year success rate of zirconia (ZrO 2 ) implants with three different kinds of surfaces. Materials and Methods: One-piece zirconia dental implants (Cera-Root) with three different roughened surfaces were designed and manufactured for this study : coated, uncoated, and acid-etched. Five different implant designs were manufactured. Standard or flapless surgical procedures were used for implant placement. Simultaneous bone augmentation or sinus elevation was performed when bone height or width was insufficient. Definitive all-ceramic restorations were placed 4 months after implant placement (8 months or more for implants when bone augmentation or sinus elevation was performed). The implants were followed up to 5 years (mean, 3.40 ± 0.21). Results: In all, 831 implants were placed in 378 patients with a mean age of 48 years. The overall implant success rate after 5 years of follow-up was 95% (92.77% for uncoated implants, 93.57% for coated implants, and 97.60% for acid-etched implants). The success rate of the acid-etched surface group was significantly better than that of the other two. Conclusion: From this midterm investigation, it can be concluded that zirconia dental implants with roughened surfaces might be a viable alternative for tooth replacement. Further follow-up is needed to evaluate the long-term success rates of the implant surfaces studied. INT J ORAL MAXILLOFAC IMPLANTS 2010;25:336-344