Tosun Tosun - Academia.edu (original) (raw)
Papers by Tosun Tosun
Aim: To assess the effectiveness of zygomatic anchorage for the intrusion of maxillary pos- terio... more Aim: To assess the effectiveness of zygomatic anchorage for the intrusion of maxillary pos- terior teeth. Method: A male patient, 20 years 5 months of age, with 3-mm anterior open bite with excessive maxillary posterior growth, was accepted for treatment. Titanium mini- plates were fixed bilaterally to the zygomatic buttress area and 200 g of force was applied unilaterally with 9-mm nickel-titanium coil springs between the vertical extension of the miniplate and the first molar buccal tube. Later, the zygomatic site was used for maxillary canine distalization. Results: The maxillary posterior teeth were intruded effectively and the canines were distalized bodily, without anchorage loss, with the help of zygomatic anchor- age. The patient was advised to maintain good oral hygiene throughout the treatment. This noninvasive surgical procedure eased and reduced the operation time and did not require headgear wear nor anterior box elastics for anterior open bite correction. Conclusion: The zygomatic area was found to be a useful anchorage site for the intrusion of the molars over a short period of time. Long-term stability of the bite closure should be assessed in future studies. World J Orthod 2002;3:147–153.
Journal of Periodontology, 2001
The reconstruction of edentulous patients with adequate bone volume and density by using dental i... more The reconstruction of edentulous patients with adequate bone volume and density by using dental implants has become a viable treatment option with high predictability. However, initial stabilization is difficult to achieve in the posterior maxillary regions where cortical bone is thin or absent due to severely resorbed alveolar ridges. Maxillary sinus lift procedures applied with various grafting materials enable clinicians to place implant-supported prostheses even in cases with increased pneumatization of the maxillary sinus. The purpose of this study was to evaluate histologically and clinically different grafting materials used in maxillary sinus floor augmentation. Deproteinized bovine bone granules (DBBG), demineralized freeze-dried bone powder (DFBP), and porous hydroxyapatite (PHA) were used as grafting materials. A total of 19 implants in 8 patients were placed into grafted sites. In 3 patients, a 2-stage approach was used wherein implants were inserted after a 6-month healing period following a sinus lift procedure. Specimens were taken with a trephine drill, and the site of the specimen was enlarged to accept an implant. For the remaining cases, a 1-stage approach, which included sinus lifting and implant placement, was used and bone biopsies were taken during the uncovering stage. After 6 months of healing, fixed prosthetic restorations were fabricated. The healing period progressed without any complications, and all implants were loaded. The mean functioning time was 12 months, varying from 9 to 24 months. The results indicate that DFBP resorbs earlier than PHA and DBBG in sinus lift procedures.
The International Journal of Oral Maxillofacial Implants, 2002
PURPOSE: Palatal implants have been used in the last 2 decades to eliminate headgear wear and to ... more PURPOSE: Palatal implants have been used in the last 2 decades to eliminate headgear wear and to establish stationary anchorage. The aim of this investigation was to establish a method and easy protocol for palatal implant placement.MATERIALS AND METHODS: The study comprised 8 male and 15 female patients each having a 4.5 x 8-mm stepped screw titanium implant placed in the palatal region for orthodontic purposes. A surgical template containing metal drill housing was prepared. Angulation of the drill housing was controlled according to the radiologic tracing of the maxilla transferred to a plaster cast section in the paramedian plane. Implants were placed using a noninvasive technique (incision, flap, and suture elimination) and left transmucosally to facilitate the surgical procedure and reduce operations. The paramedian region was selected so as to avoid connective tissues of the palatine suture and because it was considered to be a suitable host site for implant placement.RESULTS: After 3 months of healing, all implants were osseointegrated and no implant was lost throughout the orthodontic treatment.DISCUSSION: Palatal implants can be used effectively for anchorage maintenance and space-gaining procedures.CONCLUSION: Usage of a 3-dimensional surgical template eliminated faulty implant placement, reduced chair time, and minimized trauma to the tissues while enhancing osseointegration.
The Erbium laser (Er:YAG, 2940 nm wavelength) with its high absorption in water and low penetrati... more The Erbium laser (Er:YAG, 2940 nm wavelength) with its high absorption in water and low penetration depth in soft and hard oral tissues, enables a high ablation depth control in bone surgery. This precise control offers a major advantage, especially in lateral approach sinus-grafting procedures, where often a thin bone wall is present. The pulse-duration control offered by erbium lasers dramatically affects clinical results in terms of ablation capability. Temporal profiles of dental Er:YAG lasers reveal that there are two distinct types of pulse profiles: Square Pulse and Gaussian. The aim of the present retrospective study is to make a clinical comparison of Square Pulse Er:YAG versus Gaussian Er:YAG lasers in maxillary sinus surgeries. The study consists of two groups: Square Pulse vs Gaussian. In the Square Pulse group, an articulated-arm-based Er:YAG device (LightWalker, Fotona) that produces a Variable Square Pulse (VSP) beam profile was used. The Square Pulse group consists o...
The International journal of oral & maxillofacial implants
The aims of the present study were to use polysomnographic analysis to confirm sleep bruxism (SB)... more The aims of the present study were to use polysomnographic analysis to confirm sleep bruxism (SB) and to evaluate clinical findings of dental implant treatment in SB patients. The present study comprised the retrospective analysis of 368 patients with a total of 838 endosseous implants. Nineteen patients who experienced mechanical complications, such as implant or abutment fractures, loosened gold screws, or occlusal surface wear or damage, were selected for polysomnographic analysis to monitor sleep symptoms. Six patients in the study group were identified as having SB, and this was confirmed by polysomnographic analysis. The SB electromyographic episodes were at least 20% of the patients' maximum voluntary contractions while awake and were scored. Most of the bruxism episodes (80%) were seen in light sleep stages. Only 5% of bruxism episodes were detected during rapid-eye-movement sleep. Sleep stage recordings were similar in all individuals. Bruxism episodes did not cause aro...
Journal of Periodontology, 2005
Journal of Periodontology, 2001
The reconstruction of edentulous patients with adequate bone volume and density by using dental i... more The reconstruction of edentulous patients with adequate bone volume and density by using dental implants has become a viable treatment option with high predictability. However, initial stabilization is difficult to achieve in the posterior maxillary regions where cortical bone is thin or absent due to severely resorbed alveolar ridges. Maxillary sinus lift procedures applied with various grafting materials enable clinicians to place implant-supported prostheses even in cases with increased pneumatization of the maxillary sinus. The purpose of this study was to evaluate histologically and clinically different grafting materials used in maxillary sinus floor augmentation. Deproteinized bovine bone granules (DBBG), demineralized freeze-dried bone powder (DFBP), and porous hydroxyapatite (PHA) were used as grafting materials. A total of 19 implants in 8 patients were placed into grafted sites. In 3 patients, a 2-stage approach was used wherein implants were inserted after a 6-month healing period following a sinus lift procedure. Specimens were taken with a trephine drill, and the site of the specimen was enlarged to accept an implant. For the remaining cases, a 1-stage approach, which included sinus lifting and implant placement, was used and bone biopsies were taken during the uncovering stage. After 6 months of healing, fixed prosthetic restorations were fabricated. The healing period progressed without any complications, and all implants were loaded. The mean functioning time was 12 months, varying from 9 to 24 months. The results indicate that DFBP resorbs earlier than PHA and DBBG in sinus lift procedures.
Journal of Periodontology, 2002
The aim of the present study was to compare the peri-implant soft tissue health status of implant... more The aim of the present study was to compare the peri-implant soft tissue health status of implants supporting overdentures with bar attachments or ball attachments in the mandible, as well as patient satisfaction with these attachment types. The study included a Dolder bar group with 18 cases (43 implants) and a ball attachment group with 18 cases (51 implants). The mean function period in the Dolder bar group was 49 months (range: 12 to 72 months) and in the ball attachment group, the mean was 23 months (range: 12 to 40 months). Implants were clinically evaluated by using a modified plaque index (mPI), modified sulcus bleeding index (mSBI), and probing depths. Patient satisfaction with the treatment was recorded using a questionnaire. mPI, probing depth, and mSBI did not statistically differ between groups (Mann-Whitney U test, P > 0.05). Patient satisfaction was similar with both retentive systems. Within the limits of this study, we concluded that there was no significant difference between the 2 attachment types used for implant-supported overdentures with respect to the soft tissue health status or patient satisfaction.
Background: Conventionally, crown lengthening surgery is achieved through an “open” mucoperiostea... more Background: Conventionally, crown lengthening surgery is achieved through an “open” mucoperiosteal flap access procedure and the use of rotary instruments. The introduction of mid-infrared laser wavelengths, e.g., erbium:YAG (2940 nm), has made possible a “flapless” approach to crown lengthening surgery, which has several advantages such as uneventful healing, less edema, and no sutures. Flapless surgery is a blind approach and the outcome of crevicular bony modeling in such a method is uncertain. Aim: The aim of this study is to compare the topographic results of both surgical methods in a sheep model. Material and Methods: Ten fresh sheep mandibles were used. Bilateral crown lengthening was obtained on four molar teeth. Randomly, one side was used as test and the other as control. An Er:YAG laser (15 Hz frequency, 400 mJ energy, 200 μsec pulse duration, 6 W average power) was used on the test sides without raising a mucoperiosteal flap, and buccal crestal bone of 2 mm height was r...
Aim: To assess the effectiveness of zygomatic anchorage for the intrusion of maxillary pos- terio... more Aim: To assess the effectiveness of zygomatic anchorage for the intrusion of maxillary pos- terior teeth. Method: A male patient, 20 years 5 months of age, with 3-mm anterior open bite with excessive maxillary posterior growth, was accepted for treatment. Titanium mini- plates were fixed bilaterally to the zygomatic buttress area and 200 g of force was applied unilaterally with 9-mm nickel-titanium coil springs between the vertical extension of the miniplate and the first molar buccal tube. Later, the zygomatic site was used for maxillary canine distalization. Results: The maxillary posterior teeth were intruded effectively and the canines were distalized bodily, without anchorage loss, with the help of zygomatic anchor- age. The patient was advised to maintain good oral hygiene throughout the treatment. This noninvasive surgical procedure eased and reduced the operation time and did not require headgear wear nor anterior box elastics for anterior open bite correction. Conclusion: The zygomatic area was found to be a useful anchorage site for the intrusion of the molars over a short period of time. Long-term stability of the bite closure should be assessed in future studies. World J Orthod 2002;3:147–153.
Journal of Periodontology, 2001
The reconstruction of edentulous patients with adequate bone volume and density by using dental i... more The reconstruction of edentulous patients with adequate bone volume and density by using dental implants has become a viable treatment option with high predictability. However, initial stabilization is difficult to achieve in the posterior maxillary regions where cortical bone is thin or absent due to severely resorbed alveolar ridges. Maxillary sinus lift procedures applied with various grafting materials enable clinicians to place implant-supported prostheses even in cases with increased pneumatization of the maxillary sinus. The purpose of this study was to evaluate histologically and clinically different grafting materials used in maxillary sinus floor augmentation. Deproteinized bovine bone granules (DBBG), demineralized freeze-dried bone powder (DFBP), and porous hydroxyapatite (PHA) were used as grafting materials. A total of 19 implants in 8 patients were placed into grafted sites. In 3 patients, a 2-stage approach was used wherein implants were inserted after a 6-month healing period following a sinus lift procedure. Specimens were taken with a trephine drill, and the site of the specimen was enlarged to accept an implant. For the remaining cases, a 1-stage approach, which included sinus lifting and implant placement, was used and bone biopsies were taken during the uncovering stage. After 6 months of healing, fixed prosthetic restorations were fabricated. The healing period progressed without any complications, and all implants were loaded. The mean functioning time was 12 months, varying from 9 to 24 months. The results indicate that DFBP resorbs earlier than PHA and DBBG in sinus lift procedures.
The International Journal of Oral Maxillofacial Implants, 2002
PURPOSE: Palatal implants have been used in the last 2 decades to eliminate headgear wear and to ... more PURPOSE: Palatal implants have been used in the last 2 decades to eliminate headgear wear and to establish stationary anchorage. The aim of this investigation was to establish a method and easy protocol for palatal implant placement.MATERIALS AND METHODS: The study comprised 8 male and 15 female patients each having a 4.5 x 8-mm stepped screw titanium implant placed in the palatal region for orthodontic purposes. A surgical template containing metal drill housing was prepared. Angulation of the drill housing was controlled according to the radiologic tracing of the maxilla transferred to a plaster cast section in the paramedian plane. Implants were placed using a noninvasive technique (incision, flap, and suture elimination) and left transmucosally to facilitate the surgical procedure and reduce operations. The paramedian region was selected so as to avoid connective tissues of the palatine suture and because it was considered to be a suitable host site for implant placement.RESULTS: After 3 months of healing, all implants were osseointegrated and no implant was lost throughout the orthodontic treatment.DISCUSSION: Palatal implants can be used effectively for anchorage maintenance and space-gaining procedures.CONCLUSION: Usage of a 3-dimensional surgical template eliminated faulty implant placement, reduced chair time, and minimized trauma to the tissues while enhancing osseointegration.
The Erbium laser (Er:YAG, 2940 nm wavelength) with its high absorption in water and low penetrati... more The Erbium laser (Er:YAG, 2940 nm wavelength) with its high absorption in water and low penetration depth in soft and hard oral tissues, enables a high ablation depth control in bone surgery. This precise control offers a major advantage, especially in lateral approach sinus-grafting procedures, where often a thin bone wall is present. The pulse-duration control offered by erbium lasers dramatically affects clinical results in terms of ablation capability. Temporal profiles of dental Er:YAG lasers reveal that there are two distinct types of pulse profiles: Square Pulse and Gaussian. The aim of the present retrospective study is to make a clinical comparison of Square Pulse Er:YAG versus Gaussian Er:YAG lasers in maxillary sinus surgeries. The study consists of two groups: Square Pulse vs Gaussian. In the Square Pulse group, an articulated-arm-based Er:YAG device (LightWalker, Fotona) that produces a Variable Square Pulse (VSP) beam profile was used. The Square Pulse group consists o...
The International journal of oral & maxillofacial implants
The aims of the present study were to use polysomnographic analysis to confirm sleep bruxism (SB)... more The aims of the present study were to use polysomnographic analysis to confirm sleep bruxism (SB) and to evaluate clinical findings of dental implant treatment in SB patients. The present study comprised the retrospective analysis of 368 patients with a total of 838 endosseous implants. Nineteen patients who experienced mechanical complications, such as implant or abutment fractures, loosened gold screws, or occlusal surface wear or damage, were selected for polysomnographic analysis to monitor sleep symptoms. Six patients in the study group were identified as having SB, and this was confirmed by polysomnographic analysis. The SB electromyographic episodes were at least 20% of the patients' maximum voluntary contractions while awake and were scored. Most of the bruxism episodes (80%) were seen in light sleep stages. Only 5% of bruxism episodes were detected during rapid-eye-movement sleep. Sleep stage recordings were similar in all individuals. Bruxism episodes did not cause aro...
Journal of Periodontology, 2005
Journal of Periodontology, 2001
The reconstruction of edentulous patients with adequate bone volume and density by using dental i... more The reconstruction of edentulous patients with adequate bone volume and density by using dental implants has become a viable treatment option with high predictability. However, initial stabilization is difficult to achieve in the posterior maxillary regions where cortical bone is thin or absent due to severely resorbed alveolar ridges. Maxillary sinus lift procedures applied with various grafting materials enable clinicians to place implant-supported prostheses even in cases with increased pneumatization of the maxillary sinus. The purpose of this study was to evaluate histologically and clinically different grafting materials used in maxillary sinus floor augmentation. Deproteinized bovine bone granules (DBBG), demineralized freeze-dried bone powder (DFBP), and porous hydroxyapatite (PHA) were used as grafting materials. A total of 19 implants in 8 patients were placed into grafted sites. In 3 patients, a 2-stage approach was used wherein implants were inserted after a 6-month healing period following a sinus lift procedure. Specimens were taken with a trephine drill, and the site of the specimen was enlarged to accept an implant. For the remaining cases, a 1-stage approach, which included sinus lifting and implant placement, was used and bone biopsies were taken during the uncovering stage. After 6 months of healing, fixed prosthetic restorations were fabricated. The healing period progressed without any complications, and all implants were loaded. The mean functioning time was 12 months, varying from 9 to 24 months. The results indicate that DFBP resorbs earlier than PHA and DBBG in sinus lift procedures.
Journal of Periodontology, 2002
The aim of the present study was to compare the peri-implant soft tissue health status of implant... more The aim of the present study was to compare the peri-implant soft tissue health status of implants supporting overdentures with bar attachments or ball attachments in the mandible, as well as patient satisfaction with these attachment types. The study included a Dolder bar group with 18 cases (43 implants) and a ball attachment group with 18 cases (51 implants). The mean function period in the Dolder bar group was 49 months (range: 12 to 72 months) and in the ball attachment group, the mean was 23 months (range: 12 to 40 months). Implants were clinically evaluated by using a modified plaque index (mPI), modified sulcus bleeding index (mSBI), and probing depths. Patient satisfaction with the treatment was recorded using a questionnaire. mPI, probing depth, and mSBI did not statistically differ between groups (Mann-Whitney U test, P > 0.05). Patient satisfaction was similar with both retentive systems. Within the limits of this study, we concluded that there was no significant difference between the 2 attachment types used for implant-supported overdentures with respect to the soft tissue health status or patient satisfaction.
Background: Conventionally, crown lengthening surgery is achieved through an “open” mucoperiostea... more Background: Conventionally, crown lengthening surgery is achieved through an “open” mucoperiosteal flap access procedure and the use of rotary instruments. The introduction of mid-infrared laser wavelengths, e.g., erbium:YAG (2940 nm), has made possible a “flapless” approach to crown lengthening surgery, which has several advantages such as uneventful healing, less edema, and no sutures. Flapless surgery is a blind approach and the outcome of crevicular bony modeling in such a method is uncertain. Aim: The aim of this study is to compare the topographic results of both surgical methods in a sheep model. Material and Methods: Ten fresh sheep mandibles were used. Bilateral crown lengthening was obtained on four molar teeth. Randomly, one side was used as test and the other as control. An Er:YAG laser (15 Hz frequency, 400 mJ energy, 200 μsec pulse duration, 6 W average power) was used on the test sides without raising a mucoperiosteal flap, and buccal crestal bone of 2 mm height was r...