Objective: To investigate the clinical performance of implants with chemically modified surfaces in irradiated bone in a period of five-years. Patients & Methods: 15 (6 females, 9 males, 50.2 years with a range of...Objective: To investigate the clinical performance of implants with chemically modified surfaces in irradiated bone in a period of five-years. Patients & Methods: 15 (6 females, 9 males, 50.2 years with a range of 38 - 60 years) patients who had been operated for oral tumors and had undergone radiotherapy were enrolled and 40 SLActive surface implants were placed (24 in the maxilla, 16 in the mandible). Implants were allowed to integrate for a period of 90 days and the stability of the implants was measured with Resonance Frequency Analyzer/Osstell? Mentor (Integration Diagnostics, Savedalen, Sweden) at implant placement, 30 days later and at the end of the 90th day. Patients follow up periods after the implant placement varied from 20 months to 60 months (mean: 45 months). Results: Two implants were lost in maxilla in healing period as a result of osseointegration failure. The survival rate was 95%. During the observation period, totally 4 implants were lost. The overall success rate was 90%. 3 of the lost implants were in maxilla and one was in mandible. The initial ISQ values of the implants differed from 20 - 71;the second values were between 24 - 71 and the last values were between 30 - 89. The implants which were lost could not show a value greater than 35. Conclusion: There was no any complication on the SLActive surface implant placed bones due to irradiation. Within the limitations of this study, it may be concluded that osseointegrated implants can be placed in irradiated bones, unless a careful patient selection and treatment planning is performed.展开更多
Background: Congenital epulis (CE) also known as congenital granuler cell tumor is a rarely encountered pathology the majority of which originates from the gingival mucosa, particularly the anterior portion of the max...Background: Congenital epulis (CE) also known as congenital granuler cell tumor is a rarely encountered pathology the majority of which originates from the gingival mucosa, particularly the anterior portion of the maxillary alveolar ridge. CE mostly seen in girls. CE with unclear histogenesis and etiology is seen at birth as a solitary mass in oral cavity. Apart from non-congenital epulis, it contains granular cells. So lesion is named congenital granular cell tumor. CE has a benign histopathology and after surgery there is no recurrence reported in the literature. Aim: The purpose of this case report, is to present, 5 day-old female neonatal girl who was seen CE on the left maxillary alveolar ridge on the region of the future incisors. Case Presentation: The tumoral lesion was well-circumscribed and 10 mm in diameter, smooth surfaced and red in colour much like alveolar mucosal tissue. Tumoral lesion was affecting oral feeding due to obstruction. Excisional biopsy was performed under topical anesthesia. The histopathology was reported as congenital epulis. During the 4 months follow-up, we have seen no complication. Conclusion: CE is a neonatal congenital tumor which is very rare. The treatment of CE is surgical excision. Unless the early treatment is not executed, tumor may cause difficulties in oral feeding and respiration. Therefore it should be excised in an early period.展开更多
The placement of implants in edentulous areas is often compromised because of atrophic alveolar ridges. Several techniques have been suggested in the literature to increase inadequte bone width which includes bone gra...The placement of implants in edentulous areas is often compromised because of atrophic alveolar ridges. Several techniques have been suggested in the literature to increase inadequte bone width which includes bone grafting, distraction osteogenesis and bone expansion. Bone expansion technique is one of the most widely used methods which can also be utilized to increase the width of alveolar ridge and to provide sufficient bone volume for implant placement. The purpose of this study, is to measure the increase of the width of alveolar ridge after bone expansion following implant placement. Between 2013-2016, 30 consecutive, healthy, non-smoking, adult patients with atrophy of the maxilla and mandibula had 149 implants inserted. There were 18 women and 12 men, mean age 51.34 years (range 34 - 67). The initial width of the alveolar ridge measured from 2.5 to 3 mm (mean 2.83 ± 0.2) with Cone beam computed tomography (CBCT). The mean increase of bone width was achieved 1.25 mm (between 0.64 mm and 1.73 mm). Before prosthetic rehabilitation, width of expanded alveolar bone was calculated from 3.50 to 4.75 mm with CBCT. During follow-up, 140 implants survived and 9 implants failed. The rate of implant survival was 93.95% after average 5 years follow-up. In conclusion, we suggest that, bone expansion is useful for managing the unsufficient ridges for implant placement.展开更多
Background: Despite scientific and technological developments on dentistry, man is still losing their teeth due to several reasons. Tooth loss may result in esthetical and functional discrepancies. Although beginning ...Background: Despite scientific and technological developments on dentistry, man is still losing their teeth due to several reasons. Tooth loss may result in esthetical and functional discrepancies. Although beginning of dental transplantation is quite old, it started to take attraction on scientific basis recently. In recent years, oral implants are being used nearly in all fields of dentistry. Purpose: The purpose of this study was to evaluate 5 year follow-up of a patient with an impacted maxillary canine transplantation and a single-tooth implant. Materials and Methods: In our study an impacted canine was removed and transplanted immediately. Thereafter the missing premolar was replaced by an implant retained cemented crown. The patient was evaluated clinically and radiographically. Clinical periodontal parameters and implant mobility was evaluated, marginal bone level was measured on radiographs. Results: No significant changes have been observed in these parameters and implant mobility between year one and year five of the study. Conclusion: This study has demonstrated that stable long-term results can be achieved with replacement of single teeth with MIS Implant, and cemented crown on abutment with adjacent transplanted canine, with cumulative success rate for five years.展开更多
文摘Objective: To investigate the clinical performance of implants with chemically modified surfaces in irradiated bone in a period of five-years. Patients & Methods: 15 (6 females, 9 males, 50.2 years with a range of 38 - 60 years) patients who had been operated for oral tumors and had undergone radiotherapy were enrolled and 40 SLActive surface implants were placed (24 in the maxilla, 16 in the mandible). Implants were allowed to integrate for a period of 90 days and the stability of the implants was measured with Resonance Frequency Analyzer/Osstell? Mentor (Integration Diagnostics, Savedalen, Sweden) at implant placement, 30 days later and at the end of the 90th day. Patients follow up periods after the implant placement varied from 20 months to 60 months (mean: 45 months). Results: Two implants were lost in maxilla in healing period as a result of osseointegration failure. The survival rate was 95%. During the observation period, totally 4 implants were lost. The overall success rate was 90%. 3 of the lost implants were in maxilla and one was in mandible. The initial ISQ values of the implants differed from 20 - 71;the second values were between 24 - 71 and the last values were between 30 - 89. The implants which were lost could not show a value greater than 35. Conclusion: There was no any complication on the SLActive surface implant placed bones due to irradiation. Within the limitations of this study, it may be concluded that osseointegrated implants can be placed in irradiated bones, unless a careful patient selection and treatment planning is performed.
文摘Background: Congenital epulis (CE) also known as congenital granuler cell tumor is a rarely encountered pathology the majority of which originates from the gingival mucosa, particularly the anterior portion of the maxillary alveolar ridge. CE mostly seen in girls. CE with unclear histogenesis and etiology is seen at birth as a solitary mass in oral cavity. Apart from non-congenital epulis, it contains granular cells. So lesion is named congenital granular cell tumor. CE has a benign histopathology and after surgery there is no recurrence reported in the literature. Aim: The purpose of this case report, is to present, 5 day-old female neonatal girl who was seen CE on the left maxillary alveolar ridge on the region of the future incisors. Case Presentation: The tumoral lesion was well-circumscribed and 10 mm in diameter, smooth surfaced and red in colour much like alveolar mucosal tissue. Tumoral lesion was affecting oral feeding due to obstruction. Excisional biopsy was performed under topical anesthesia. The histopathology was reported as congenital epulis. During the 4 months follow-up, we have seen no complication. Conclusion: CE is a neonatal congenital tumor which is very rare. The treatment of CE is surgical excision. Unless the early treatment is not executed, tumor may cause difficulties in oral feeding and respiration. Therefore it should be excised in an early period.
基金supported by the Research Fund of Istanbul University.Project No.2016-21405
文摘The placement of implants in edentulous areas is often compromised because of atrophic alveolar ridges. Several techniques have been suggested in the literature to increase inadequte bone width which includes bone grafting, distraction osteogenesis and bone expansion. Bone expansion technique is one of the most widely used methods which can also be utilized to increase the width of alveolar ridge and to provide sufficient bone volume for implant placement. The purpose of this study, is to measure the increase of the width of alveolar ridge after bone expansion following implant placement. Between 2013-2016, 30 consecutive, healthy, non-smoking, adult patients with atrophy of the maxilla and mandibula had 149 implants inserted. There were 18 women and 12 men, mean age 51.34 years (range 34 - 67). The initial width of the alveolar ridge measured from 2.5 to 3 mm (mean 2.83 ± 0.2) with Cone beam computed tomography (CBCT). The mean increase of bone width was achieved 1.25 mm (between 0.64 mm and 1.73 mm). Before prosthetic rehabilitation, width of expanded alveolar bone was calculated from 3.50 to 4.75 mm with CBCT. During follow-up, 140 implants survived and 9 implants failed. The rate of implant survival was 93.95% after average 5 years follow-up. In conclusion, we suggest that, bone expansion is useful for managing the unsufficient ridges for implant placement.
文摘Background: Despite scientific and technological developments on dentistry, man is still losing their teeth due to several reasons. Tooth loss may result in esthetical and functional discrepancies. Although beginning of dental transplantation is quite old, it started to take attraction on scientific basis recently. In recent years, oral implants are being used nearly in all fields of dentistry. Purpose: The purpose of this study was to evaluate 5 year follow-up of a patient with an impacted maxillary canine transplantation and a single-tooth implant. Materials and Methods: In our study an impacted canine was removed and transplanted immediately. Thereafter the missing premolar was replaced by an implant retained cemented crown. The patient was evaluated clinically and radiographically. Clinical periodontal parameters and implant mobility was evaluated, marginal bone level was measured on radiographs. Results: No significant changes have been observed in these parameters and implant mobility between year one and year five of the study. Conclusion: This study has demonstrated that stable long-term results can be achieved with replacement of single teeth with MIS Implant, and cemented crown on abutment with adjacent transplanted canine, with cumulative success rate for five years.
