zvi Artzi - Academia.edu (original) (raw)
Papers by zvi Artzi
The authors have requested that this preprint be removed from Research Square.
International journal of oral implantology (Berlin, Germany), Sep 9, 2022
The aim of the present study was to generate an international and multidisciplinary consensus on ... more The aim of the present study was to generate an international and multidisciplinary consensus on the clinical management of implant protrusion into the maxillary sinuses and nasal fossae. A total of 31 experts participated, 23 of whom were experts in implantology (periodontologists, maxillofacial surgeons and implantologists), 6 were otolaryngologists and 2 were radiologists. All the participants were informed of the current scientific knowledge on the topic based on a systematic search of the literature. A list of statements was created and divided into three surveys: one for all participants, one for implant providers and radiologists and one for otolaryngologists and radiologists. A consensus was reached on 15 out of 17 statements. According to the participants, osseointegrated implants protruding radiographically into the maxillary sinus or nasal fossae require as much monitoring and maintenance as implants fully covered by bone. In the event of symptoms of sinusitis, collaboration between implant providers and otolaryngologists is required. Implant removal should be considered only after pharmacological and surgical management of sinusitis have failed.
Bone Augmentation by Anatomical Region, 2020
Bone Augmentation by Anatomical Region, 2020
Quintessence international, 2020
OBJECTIVES To monitor and compare the nonsubmerged (single-stage, SS) and submerged (two-stage, T... more OBJECTIVES To monitor and compare the nonsubmerged (single-stage, SS) and submerged (two-stage, TS) implant placement techniques up to the final prosthesis delivery. Marginal bone level and marginal bone loss rate of both surgical techniques were compared. METHOD AND MATERIALS Marginal bone level was measured, using an image processing program (ImageJ), from periapical radiographs at the times of placement (T0), exposure (Te), initial loading (T1), and at the final prosthetic delivery (T2), with a total time span of a mean of 13.2 ± 3.3 months. By timing normalization, marginal bone level and marginal bone loss rate (mm/month), following SS and TS implant placement techniques and other local and systemic parameters were analyzed. Asymmetric analyses using Mann-Whitney test followed by the correlation Pearson analyses were applied. A P value < .05 defined statistical significance. RESULTS In total, 268 implants (42 patients) were monitored. Marginal bone loss rate was 0.15 ± 0.13 ...
Quintessence international, 1997
The use of a barrier membrane, with or without osseous allograft, has been shown to establish reg... more The use of a barrier membrane, with or without osseous allograft, has been shown to establish regeneration of osseous tissue around dental implants. Following three episodes of persistent symptomatic failed apicoectomy and subsequent tooth extraction, an osseointegrated implant was placed in a wide fenestrated defect. Demineralized freeze-dried bone allograft was covered by an occlusive expanded polytetrafluorethylene membrane. The reentry procedure revealed complete bone fill that followed the texture of the augmentation material beyond the previous buccal bony envelope.
Quintessence international, 2021
Objective: The aim was to evaluate the efficacy of periodontal regenerative therapy using enamel ... more Objective: The aim was to evaluate the efficacy of periodontal regenerative therapy using enamel matrix derivatives (EMDs) in aggressive periodontitis patients, and to determine the contribution of maintenance via periodic supportive periodontal treatment. Method and materials: In total, 28 patients were evaluated, comprising 74 intrabony sites. In 50 sites EMD gel was applied, and in 24 sites EMD was combined with deproteinized bovine xenograft. Patients were assigned to a supportive periodontal treatment program; 18 patients fulfilled the program, defined as the well-maintained (WM) group; 10 did not comply, defined as the nonmaintained (NM) group. Probing depth (PD), clinical attachment level (CAL), and radiographic bone level (BL) were recorded. Data were compared presurgically (T0), 6 months postsurgery (T1), and 3 to 10 years posttreatment (T2). Results: Both surgical modalities achieved similar PD reduction, CAL gain, and BL gain, maintained over time. T1 to T2 showed a mean...
Clinical Oral Implants Research, Oct 1, 2018
Background : Human freeze-dried bone (h-FDB) are widely used to increase bone volume to accommoda... more Background : Human freeze-dried bone (h-FDB) are widely used to increase bone volume to accommodate osseointegrated implants. Aim/Hypothesis : To assess the extent of osseointegration and new bone formation of SLA roughed surface implants placed in FDB blocks or FDB particulate ones. Material and Methods : 12 pairs of h-FDB blocks were stabilized bilaterally to the calvaria of twelve rabbits. At 4-month post grafting, SLA implants (4.2 × 6.0-mm) were placed. One block in each pair was chosen for a circumferential tunnel around the implant, which was packed with human cortico-cancellous particles. At 6 and 7 weeks post operatively, fluorochrome bone labeling was carried. Block biopsies were obtained for non-decalcification processing and histological analysis at 6 months, post implant placement. RNA extraction was performed from whole bone (calvaria) and block. RT-PCR was conducted for Tartrate-Resistant Acid Phosphatase (TRAP) and Alkaline Phosphatase (ALP). Morphometric measurements, using Bio-quant Nova software, evaluated bone-to-implant contact (BIC) and bone area fraction (BAF) parameters. A paired t test was applied for statistical analysis. Results : Morphometric measurements showed that the mean BIC and BAF within the h-FDB block was 34.4% and 23.9%, respectively. The mean BIC and BAF within the particulate h-FDB was 33.6% and 26.4%, respectively. Differences were non-significant. Statistical analysis for the RNA expression showed significantly higher values only for the ALP counts (16.7−1 + P < 0.05), however, not for the TRAP (2.25−1 + NS) for the particulated group compared to the block group. The fluorescent labeling demonstrated bone modeling and remodeling mainly in proximity to the calvaria in both types of grafts. Conclusions and Clinical Implications : Limited osseointegration and newly-formed bone were evident, primarily in the vicinity of the host rabbit calvaria. Despite the elevated osteoblastic activity in the particulate group, there were no significant differences between the groups. The proximity to the recipient osseous host bed is of utmost importance to achieve vascularization and vitalization of the grafted biomaterial. It appears, that the main obstacle is to establish total vitalization of the grafted h-FDB in both forms.
Journal of Clinical Periodontology, 2019
Background and AimsTo review the regenerative technologies used in bone regeneration: bone grafts... more Background and AimsTo review the regenerative technologies used in bone regeneration: bone grafts, barrier membranes, bioactive factors and cell therapies.Material and MethodsFour background review publications served to elaborate this consensus report.Results and ConclusionsBiomaterials used as bone grafts must meet specific requirements: biocompatibility, porosity, osteoconductivity, osteoinductivity, surface properties, biodegradability, mechanical properties, angiogenicity, handling and manufacturing processes. Currently used biomaterials have demonstrated advantages and limitations based on the fulfilment of these requirements. Similarly, membranes for guided bone regeneration (GBR) must fulfil specific properties and potential biological mechanisms to improve their clinical applicability. Pre‐clinical and clinical studies have evaluated the added effect of bone morphogenetic proteins (mainly BMP‐2) and autologous platelet concentrates (APCs) when used as bioactive agents to en...
Refuʾat ha-peh ṿeha-shinayim (1993), 2011
The fresh extraction socket site in the immediate post-extraction phase possesses unique characte... more The fresh extraction socket site in the immediate post-extraction phase possesses unique characteristic wound healing cascade. Marked horizontal and vertical resorption of the edentulous ridge occurred shortly following tooth extraction. In periodontally involved teeth, when partial/full socket wall destruction is evident, the ingrowth of connective tissue into the extraction site is unavoidable leading to a deficient ridge. The use of bone substitute materials aiming to preserve the alveolar ridge by stabilizing the blood clot, thus maintaining the volume of the site and at the same time serves as an osteoconductive scaffold which facilitates continual bone formation. immediate Implant placement, is also a reliable, predictable, and successful procedure. Comparative studies regarding immediate implant placement vs. delayed placement (healed sites) reported similar high survival rate for both procedures. The addition of nonfunctional immediate provisionalization (clearance of all co...
Oral health, 1996
The methods used to lighten tooth discolouration while conserving the tooth structure have attrac... more The methods used to lighten tooth discolouration while conserving the tooth structure have attracted much attention in a society which places a high value on esthetics. The purpose of this article is to present a home bleaching agent that uses a film-forming preparation containing carbamide peroxide (CP) which, while degrading, serves as a slow release delivery system of the bleaching agent. The efficacy of the preparation containing 3% CP and 10% CP on reduction of tooth discolouration is evaluated by a Chromameter in a double-blind placebo-controlled study. The effect of the tested bleaching agent on the gingival status, plaque accumulation and pulp sensitivity is also assessed.
Quintessence international (Berlin, Germany : 1985), 2015
Evaluate the antibacterial properties of three commercial collagen membranes for guided bone rege... more Evaluate the antibacterial properties of three commercial collagen membranes for guided bone regeneration (GBR). BioGide®, OsseoGuard®, and CopiOs® membranes were tested for antibacterial properties against Streptococcus sanguinis, Staphylococcus aureus, and Staphylococcus epidermidis using a direct contact test (DCT). Samples of each membrane, sized 5 × 2 mm, were fixed to the side wall of 6 wells in a 96-well microtiter plate. Bacterial suspension was placed on each sample. The plate was incubated at 37°C for 1 hour to allow suspension fluid evaporation. Fresh medium was added to each well and the plate was mixed. Non-contaminated membrane samples served as negative control. Bacterial growth was monitored spectrophotometrically at 650 nm for 24 hours. ANOVA and Tukey's comparison tests were used for the statistical analysis. The presence of the membrane samples did not disrupt bacterial growth. However, the presence of OsseoGuard membrane accelerated bacterial growth rate of S...
Refuʾat ha-peh ṿeha-shinayim (1993), 2003
The aim of this article is to discuss the requirements to prevent, intercept and treat the peri-i... more The aim of this article is to discuss the requirements to prevent, intercept and treat the peri-implant diseases at different stages. The ethiology and pathogenesis of peri-implant disease is presented, followed by definition and characteristics of the two main entites: peri-implant mucositis and peri-implantitis. Data and concepts regarding various evaluation parameters, such as pocket probing depth, bleeding on probing, gingival and plaque scores, radiographic and mobility which should be used to assess the clinical status of the peri-implant environment are discussed. The detection and treatment of early pathogenic changes during regular recall maintenance visits can prevent peri-implant soft tissue inflammation and progressive bone loss. The biologic rationale and guidelines for therapeutic procedures aimed to prevent and arrest the Peri-implant Disease according to a maintenance system termed Comulative Interceptive Supportive Therapy (CIST) is presented. The CIST protocol incl...
Practical procedures & aesthetic dentistry : PPAD, 2001
Clinical crown lengthening procedures (CCLP) are used to enhance aesthetics and/or provide adequa... more Clinical crown lengthening procedures (CCLP) are used to enhance aesthetics and/or provide adequate tooth structure for placement and retention of a restoration while respecting the attachment apparatus. When restoration margins extend beyond the biologic width, inflammation and anatomic changes can develop. Anterior CCLP are indicated to increase the labial exposure of the clinical crown and/or the sound tooth structure coronal to the bone crest. Preservation of the interproximal papillae is mandatory to obtain desirable final results in the aesthetic region. This article illustrates various methods of CCLP used to achieve successful oral rehabilitation in the anterior maxilla.
The International journal of periodontics & restorative dentistry, 2001
Recent developments in osseous regenerative techniques have increased the demand for bone-substit... more Recent developments in osseous regenerative techniques have increased the demand for bone-substitute grafting materials. Porous deproteinized bovine bone mineral (PBBM), a biocompatible xenograft, has been used in different osseous deficiencies prior to or in conjunction with the placement of titanium implants. The different PBBM applications in fresh extraction sites, anatomic defects, and subantral floor elevation techniques are described. The use of an occlusive barrier membrane to regenerate bone via guided tissue regeneration principles was determined for each patient by clinical parameters. PBBM was well amalgamated and incorporated with the augmented hard tissue, but the transition between preexisting bone and the newly regenerated bone-like tissue was distinguishable by clinical examination even after 12 months. Grafted material was also identified using follow-up radiographs. In the presented cases, PBBM showed clinically satisfactory results as a biocompatible filler in bo...
The International journal of periodontics & restorative dentistry, 2000
Guided bone regeneration via an osteopromotive barrier is indicated in different alveolar bone de... more Guided bone regeneration via an osteopromotive barrier is indicated in different alveolar bone deficiencies and in periimplant bone destruction around pathologically denuded exposed implants. Regeneration of the osseous volume is determined by understanding the biologic behavior response of hard and soft tissues in guided tissue regeneration procedures. Consequently, a meticulous surgical approach is mandatory to preserve wound healing cascades and tissue stability. However, hard tissue augmentation in the nonsupported coronal direction has been unpredictable. A case report is presented in which a severely defected ridge around a pathologically exposed functional implant combined with a destructive extraction site was restored and regenerated. Bovine bone mineral particles (Bio-Oss) served as the graft material and were followed by an expanded polytetrafluoroethylene (e-PTFE) occlusive membrane as a bilateral regenerative tissue guide. Subsequently, 2 additional implants were placed...
The International journal of periodontics & restorative dentistry, 1999
This article describes a surgical procedure to predictably obtain primary closure over extraction... more This article describes a surgical procedure to predictably obtain primary closure over extraction sockets in the maxilla. The technique offers a valuable treatment approach for the achievement of primary soft tissue closure over bone grafts and/or occlusive osteopromotive membranes, although the use of an osteopromotive membrane may not always be necessary in cases of single-tooth extraction. The surgical technique is based on a split-thickness palatal flap in which the pediculated deep portion is rotated to cover the grafted alveolus or membrane. This procedure was used in a total of 40 sites in 32 consecutive patients; a barrier membrane was used in 20 sites. All treated sites allowed proper implant placement after healing. Two membranes became prematurely exposed and one was removed before implant surgery. Proper soft and hard tissue anatomy was predictably obtained prior to implant placement. This surgical procedure is useful in preserving and/or augmenting the alveolar ridge pr...
The authors have requested that this preprint be removed from Research Square.
International journal of oral implantology (Berlin, Germany), Sep 9, 2022
The aim of the present study was to generate an international and multidisciplinary consensus on ... more The aim of the present study was to generate an international and multidisciplinary consensus on the clinical management of implant protrusion into the maxillary sinuses and nasal fossae. A total of 31 experts participated, 23 of whom were experts in implantology (periodontologists, maxillofacial surgeons and implantologists), 6 were otolaryngologists and 2 were radiologists. All the participants were informed of the current scientific knowledge on the topic based on a systematic search of the literature. A list of statements was created and divided into three surveys: one for all participants, one for implant providers and radiologists and one for otolaryngologists and radiologists. A consensus was reached on 15 out of 17 statements. According to the participants, osseointegrated implants protruding radiographically into the maxillary sinus or nasal fossae require as much monitoring and maintenance as implants fully covered by bone. In the event of symptoms of sinusitis, collaboration between implant providers and otolaryngologists is required. Implant removal should be considered only after pharmacological and surgical management of sinusitis have failed.
Bone Augmentation by Anatomical Region, 2020
Bone Augmentation by Anatomical Region, 2020
Quintessence international, 2020
OBJECTIVES To monitor and compare the nonsubmerged (single-stage, SS) and submerged (two-stage, T... more OBJECTIVES To monitor and compare the nonsubmerged (single-stage, SS) and submerged (two-stage, TS) implant placement techniques up to the final prosthesis delivery. Marginal bone level and marginal bone loss rate of both surgical techniques were compared. METHOD AND MATERIALS Marginal bone level was measured, using an image processing program (ImageJ), from periapical radiographs at the times of placement (T0), exposure (Te), initial loading (T1), and at the final prosthetic delivery (T2), with a total time span of a mean of 13.2 ± 3.3 months. By timing normalization, marginal bone level and marginal bone loss rate (mm/month), following SS and TS implant placement techniques and other local and systemic parameters were analyzed. Asymmetric analyses using Mann-Whitney test followed by the correlation Pearson analyses were applied. A P value < .05 defined statistical significance. RESULTS In total, 268 implants (42 patients) were monitored. Marginal bone loss rate was 0.15 ± 0.13 ...
Quintessence international, 1997
The use of a barrier membrane, with or without osseous allograft, has been shown to establish reg... more The use of a barrier membrane, with or without osseous allograft, has been shown to establish regeneration of osseous tissue around dental implants. Following three episodes of persistent symptomatic failed apicoectomy and subsequent tooth extraction, an osseointegrated implant was placed in a wide fenestrated defect. Demineralized freeze-dried bone allograft was covered by an occlusive expanded polytetrafluorethylene membrane. The reentry procedure revealed complete bone fill that followed the texture of the augmentation material beyond the previous buccal bony envelope.
Quintessence international, 2021
Objective: The aim was to evaluate the efficacy of periodontal regenerative therapy using enamel ... more Objective: The aim was to evaluate the efficacy of periodontal regenerative therapy using enamel matrix derivatives (EMDs) in aggressive periodontitis patients, and to determine the contribution of maintenance via periodic supportive periodontal treatment. Method and materials: In total, 28 patients were evaluated, comprising 74 intrabony sites. In 50 sites EMD gel was applied, and in 24 sites EMD was combined with deproteinized bovine xenograft. Patients were assigned to a supportive periodontal treatment program; 18 patients fulfilled the program, defined as the well-maintained (WM) group; 10 did not comply, defined as the nonmaintained (NM) group. Probing depth (PD), clinical attachment level (CAL), and radiographic bone level (BL) were recorded. Data were compared presurgically (T0), 6 months postsurgery (T1), and 3 to 10 years posttreatment (T2). Results: Both surgical modalities achieved similar PD reduction, CAL gain, and BL gain, maintained over time. T1 to T2 showed a mean...
Clinical Oral Implants Research, Oct 1, 2018
Background : Human freeze-dried bone (h-FDB) are widely used to increase bone volume to accommoda... more Background : Human freeze-dried bone (h-FDB) are widely used to increase bone volume to accommodate osseointegrated implants. Aim/Hypothesis : To assess the extent of osseointegration and new bone formation of SLA roughed surface implants placed in FDB blocks or FDB particulate ones. Material and Methods : 12 pairs of h-FDB blocks were stabilized bilaterally to the calvaria of twelve rabbits. At 4-month post grafting, SLA implants (4.2 × 6.0-mm) were placed. One block in each pair was chosen for a circumferential tunnel around the implant, which was packed with human cortico-cancellous particles. At 6 and 7 weeks post operatively, fluorochrome bone labeling was carried. Block biopsies were obtained for non-decalcification processing and histological analysis at 6 months, post implant placement. RNA extraction was performed from whole bone (calvaria) and block. RT-PCR was conducted for Tartrate-Resistant Acid Phosphatase (TRAP) and Alkaline Phosphatase (ALP). Morphometric measurements, using Bio-quant Nova software, evaluated bone-to-implant contact (BIC) and bone area fraction (BAF) parameters. A paired t test was applied for statistical analysis. Results : Morphometric measurements showed that the mean BIC and BAF within the h-FDB block was 34.4% and 23.9%, respectively. The mean BIC and BAF within the particulate h-FDB was 33.6% and 26.4%, respectively. Differences were non-significant. Statistical analysis for the RNA expression showed significantly higher values only for the ALP counts (16.7−1 + P < 0.05), however, not for the TRAP (2.25−1 + NS) for the particulated group compared to the block group. The fluorescent labeling demonstrated bone modeling and remodeling mainly in proximity to the calvaria in both types of grafts. Conclusions and Clinical Implications : Limited osseointegration and newly-formed bone were evident, primarily in the vicinity of the host rabbit calvaria. Despite the elevated osteoblastic activity in the particulate group, there were no significant differences between the groups. The proximity to the recipient osseous host bed is of utmost importance to achieve vascularization and vitalization of the grafted biomaterial. It appears, that the main obstacle is to establish total vitalization of the grafted h-FDB in both forms.
Journal of Clinical Periodontology, 2019
Background and AimsTo review the regenerative technologies used in bone regeneration: bone grafts... more Background and AimsTo review the regenerative technologies used in bone regeneration: bone grafts, barrier membranes, bioactive factors and cell therapies.Material and MethodsFour background review publications served to elaborate this consensus report.Results and ConclusionsBiomaterials used as bone grafts must meet specific requirements: biocompatibility, porosity, osteoconductivity, osteoinductivity, surface properties, biodegradability, mechanical properties, angiogenicity, handling and manufacturing processes. Currently used biomaterials have demonstrated advantages and limitations based on the fulfilment of these requirements. Similarly, membranes for guided bone regeneration (GBR) must fulfil specific properties and potential biological mechanisms to improve their clinical applicability. Pre‐clinical and clinical studies have evaluated the added effect of bone morphogenetic proteins (mainly BMP‐2) and autologous platelet concentrates (APCs) when used as bioactive agents to en...
Refuʾat ha-peh ṿeha-shinayim (1993), 2011
The fresh extraction socket site in the immediate post-extraction phase possesses unique characte... more The fresh extraction socket site in the immediate post-extraction phase possesses unique characteristic wound healing cascade. Marked horizontal and vertical resorption of the edentulous ridge occurred shortly following tooth extraction. In periodontally involved teeth, when partial/full socket wall destruction is evident, the ingrowth of connective tissue into the extraction site is unavoidable leading to a deficient ridge. The use of bone substitute materials aiming to preserve the alveolar ridge by stabilizing the blood clot, thus maintaining the volume of the site and at the same time serves as an osteoconductive scaffold which facilitates continual bone formation. immediate Implant placement, is also a reliable, predictable, and successful procedure. Comparative studies regarding immediate implant placement vs. delayed placement (healed sites) reported similar high survival rate for both procedures. The addition of nonfunctional immediate provisionalization (clearance of all co...
Oral health, 1996
The methods used to lighten tooth discolouration while conserving the tooth structure have attrac... more The methods used to lighten tooth discolouration while conserving the tooth structure have attracted much attention in a society which places a high value on esthetics. The purpose of this article is to present a home bleaching agent that uses a film-forming preparation containing carbamide peroxide (CP) which, while degrading, serves as a slow release delivery system of the bleaching agent. The efficacy of the preparation containing 3% CP and 10% CP on reduction of tooth discolouration is evaluated by a Chromameter in a double-blind placebo-controlled study. The effect of the tested bleaching agent on the gingival status, plaque accumulation and pulp sensitivity is also assessed.
Quintessence international (Berlin, Germany : 1985), 2015
Evaluate the antibacterial properties of three commercial collagen membranes for guided bone rege... more Evaluate the antibacterial properties of three commercial collagen membranes for guided bone regeneration (GBR). BioGide®, OsseoGuard®, and CopiOs® membranes were tested for antibacterial properties against Streptococcus sanguinis, Staphylococcus aureus, and Staphylococcus epidermidis using a direct contact test (DCT). Samples of each membrane, sized 5 × 2 mm, were fixed to the side wall of 6 wells in a 96-well microtiter plate. Bacterial suspension was placed on each sample. The plate was incubated at 37°C for 1 hour to allow suspension fluid evaporation. Fresh medium was added to each well and the plate was mixed. Non-contaminated membrane samples served as negative control. Bacterial growth was monitored spectrophotometrically at 650 nm for 24 hours. ANOVA and Tukey's comparison tests were used for the statistical analysis. The presence of the membrane samples did not disrupt bacterial growth. However, the presence of OsseoGuard membrane accelerated bacterial growth rate of S...
Refuʾat ha-peh ṿeha-shinayim (1993), 2003
The aim of this article is to discuss the requirements to prevent, intercept and treat the peri-i... more The aim of this article is to discuss the requirements to prevent, intercept and treat the peri-implant diseases at different stages. The ethiology and pathogenesis of peri-implant disease is presented, followed by definition and characteristics of the two main entites: peri-implant mucositis and peri-implantitis. Data and concepts regarding various evaluation parameters, such as pocket probing depth, bleeding on probing, gingival and plaque scores, radiographic and mobility which should be used to assess the clinical status of the peri-implant environment are discussed. The detection and treatment of early pathogenic changes during regular recall maintenance visits can prevent peri-implant soft tissue inflammation and progressive bone loss. The biologic rationale and guidelines for therapeutic procedures aimed to prevent and arrest the Peri-implant Disease according to a maintenance system termed Comulative Interceptive Supportive Therapy (CIST) is presented. The CIST protocol incl...
Practical procedures & aesthetic dentistry : PPAD, 2001
Clinical crown lengthening procedures (CCLP) are used to enhance aesthetics and/or provide adequa... more Clinical crown lengthening procedures (CCLP) are used to enhance aesthetics and/or provide adequate tooth structure for placement and retention of a restoration while respecting the attachment apparatus. When restoration margins extend beyond the biologic width, inflammation and anatomic changes can develop. Anterior CCLP are indicated to increase the labial exposure of the clinical crown and/or the sound tooth structure coronal to the bone crest. Preservation of the interproximal papillae is mandatory to obtain desirable final results in the aesthetic region. This article illustrates various methods of CCLP used to achieve successful oral rehabilitation in the anterior maxilla.
The International journal of periodontics & restorative dentistry, 2001
Recent developments in osseous regenerative techniques have increased the demand for bone-substit... more Recent developments in osseous regenerative techniques have increased the demand for bone-substitute grafting materials. Porous deproteinized bovine bone mineral (PBBM), a biocompatible xenograft, has been used in different osseous deficiencies prior to or in conjunction with the placement of titanium implants. The different PBBM applications in fresh extraction sites, anatomic defects, and subantral floor elevation techniques are described. The use of an occlusive barrier membrane to regenerate bone via guided tissue regeneration principles was determined for each patient by clinical parameters. PBBM was well amalgamated and incorporated with the augmented hard tissue, but the transition between preexisting bone and the newly regenerated bone-like tissue was distinguishable by clinical examination even after 12 months. Grafted material was also identified using follow-up radiographs. In the presented cases, PBBM showed clinically satisfactory results as a biocompatible filler in bo...
The International journal of periodontics & restorative dentistry, 2000
Guided bone regeneration via an osteopromotive barrier is indicated in different alveolar bone de... more Guided bone regeneration via an osteopromotive barrier is indicated in different alveolar bone deficiencies and in periimplant bone destruction around pathologically denuded exposed implants. Regeneration of the osseous volume is determined by understanding the biologic behavior response of hard and soft tissues in guided tissue regeneration procedures. Consequently, a meticulous surgical approach is mandatory to preserve wound healing cascades and tissue stability. However, hard tissue augmentation in the nonsupported coronal direction has been unpredictable. A case report is presented in which a severely defected ridge around a pathologically exposed functional implant combined with a destructive extraction site was restored and regenerated. Bovine bone mineral particles (Bio-Oss) served as the graft material and were followed by an expanded polytetrafluoroethylene (e-PTFE) occlusive membrane as a bilateral regenerative tissue guide. Subsequently, 2 additional implants were placed...
The International journal of periodontics & restorative dentistry, 1999
This article describes a surgical procedure to predictably obtain primary closure over extraction... more This article describes a surgical procedure to predictably obtain primary closure over extraction sockets in the maxilla. The technique offers a valuable treatment approach for the achievement of primary soft tissue closure over bone grafts and/or occlusive osteopromotive membranes, although the use of an osteopromotive membrane may not always be necessary in cases of single-tooth extraction. The surgical technique is based on a split-thickness palatal flap in which the pediculated deep portion is rotated to cover the grafted alveolus or membrane. This procedure was used in a total of 40 sites in 32 consecutive patients; a barrier membrane was used in 20 sites. All treated sites allowed proper implant placement after healing. Two membranes became prematurely exposed and one was removed before implant surgery. Proper soft and hard tissue anatomy was predictably obtained prior to implant placement. This surgical procedure is useful in preserving and/or augmenting the alveolar ridge pr...