Y. Tamada, M. Suwaki, N. Kodama, G. Nishigawa, Y. Maruo, S. Minagi
The purpose of this study was to investigate whether the area and weight of removable dentures could influence patients' satisfaction with their dentures. The weight and area (projected area on occlusal plane) of 37 maxillary removable resin-based dentures fabricated in Okayama University Hospital were measured. Full consent from all of the denture users examined in this study was obtained prior to the test. Examination of the visual analogue scale (VAS) for denture satisfaction (0-100%) was performed for 13 users of these dentures. Statistical correlation between the denture areas and the number of missing teeth, and between denture weights and the number of missing teeth was examined. Statistical correlation between the VAS satisfaction level for dentures and the area⁄number of missing teeth, and between the VAS satisfaction level for dentures and the weight⁄number of missing teeth was also examined. A positive correlation was observed between the area of the denture base and the number of missing teeth (r = 0.854, p<0.001). A positive correlation was also observed between denture weight and the number of missing teeth (r = 0.842, p<0.001). According to the increase of the number of missing teeth, the area and weight of dentures increased. Therefore, the statistical level was estimated by dividing area and weight by the number of missing teeth. Positive correlation was observed between the VAS satisfaction level and the area⁄number of missing teeth (r = 0.645, p=0.017); in contrast, no statistical correlation was observed between the VAS satisfaction level and the weight⁄number of missing teeth. A positive correlation was observed between patients' satisfaction and area of the denture base⁄number of missing teeth. Patients' satisfaction with removable maxillary dentures did not depend merely on decreasing the size of the denture base.
{"title":"Patients' satisfaction with design of removable denture.","authors":"Y. Tamada, M. Suwaki, N. Kodama, G. Nishigawa, Y. Maruo, S. Minagi","doi":"10.2186/PRP.7.174","DOIUrl":"https://doi.org/10.2186/PRP.7.174","url":null,"abstract":"The purpose of this study was to investigate whether the area and weight of removable dentures could influence patients' satisfaction with their dentures. The weight and area (projected area on occlusal plane) of 37 maxillary removable resin-based dentures fabricated in Okayama University Hospital were measured. Full consent from all of the denture users examined in this study was obtained prior to the test. Examination of the visual analogue scale (VAS) for denture satisfaction (0-100%) was performed for 13 users of these dentures. Statistical correlation between the denture areas and the number of missing teeth, and between denture weights and the number of missing teeth was examined. Statistical correlation between the VAS satisfaction level for dentures and the area⁄number of missing teeth, and between the VAS satisfaction level for dentures and the weight⁄number of missing teeth was also examined. A positive correlation was observed between the area of the denture base and the number of missing teeth (r = 0.854, p<0.001). A positive correlation was also observed between denture weight and the number of missing teeth (r = 0.842, p<0.001). According to the increase of the number of missing teeth, the area and weight of dentures increased. Therefore, the statistical level was estimated by dividing area and weight by the number of missing teeth. Positive correlation was observed between the VAS satisfaction level and the area⁄number of missing teeth (r = 0.645, p=0.017); in contrast, no statistical correlation was observed between the VAS satisfaction level and the weight⁄number of missing teeth. A positive correlation was observed between patients' satisfaction and area of the denture base⁄number of missing teeth. Patients' satisfaction with removable maxillary dentures did not depend merely on decreasing the size of the denture base.","PeriodicalId":306414,"journal":{"name":"Prosthodontic Research & Practice","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116894465","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
T. Ogawa, T. Ikawa, Y. Shigeta, E. Ando, R. Hirabayashi, S. Hirai, Y. Hosoda, Shu Kamei, Jirou Araki, Kousuke Ito, S. Fukushima
Purpose: There has been a significant number of malocclusion patients who suffer from the osteoarthritis associated with TMJ, and acquired anterior open bites were reported as a representative example. Treatments for patients with malocclusion often prove difficult, as the condyle position is not stable. It remains unknown as to whether this is due to the disease or the condyle position. This case report documents a clinical application of a Digital Gothic Arch Tracer for occlusal diagnosis and subsequent management and treatment of malocclusion with osteoarthritis.Materials and methods: This case report presents the treatment process of a female patient (51 years, 6 months of age) with an acquired dual-bite malocclusion with severe osteoarthritis in the temporomandibular joint (TMJ). The occlusal condition of the patient was examined by a Digital Gothic Arch Tracer (DGAT, Gothic Display: Shofu Inc.). The GDAT was used as it provides an extra-oral tracing of jaw movements. While it is simple and easy to use, the accuracy remains impressively high, as several jaw motions are included into the final calculation.Results: The ensuing treatment plan was as follows: Upon the first examination, the occlusal position was recorded with DGAT. The DGAT data was then evaluated for correlations between the terminal points of the rapid habitual opening-closing movements (tapping points), apex point and speaking position. The gothic arch figure revealed that when approaching the terminal points of the tapping points and the speaking position, there was a separation at the apex point. From this, we reached a conclusion on the new occlusal position for tapping points and the speaking position. Based on the DGAT results, via the occlusal adjustment method, we set the new occlusal position. On their final visit the patient received Prosthodontics treatment. The DGAT was able to provide an avenue of examination that maintained the original occlusal position without raising the vertical dimension. Therefore, it was rather simple and exact to compare the Tapping points and Apex points.Conclusion: Using a Digital Gothic Arch Tracer, we successfully carried out the occlusal examination and treatment of a patient with osteoarthritis and malocclusion.
{"title":"Using the Digital Gothic Arch Tracer for Occlusal Diagnosis and Management of Malocclusion with Osteoarthritis","authors":"T. Ogawa, T. Ikawa, Y. Shigeta, E. Ando, R. Hirabayashi, S. Hirai, Y. Hosoda, Shu Kamei, Jirou Araki, Kousuke Ito, S. Fukushima","doi":"10.2186/PRP.7.252","DOIUrl":"https://doi.org/10.2186/PRP.7.252","url":null,"abstract":"Purpose: There has been a significant number of malocclusion patients who suffer from the osteoarthritis associated with TMJ, and acquired anterior open bites were reported as a representative example. Treatments for patients with malocclusion often prove difficult, as the condyle position is not stable. It remains unknown as to whether this is due to the disease or the condyle position. This case report documents a clinical application of a Digital Gothic Arch Tracer for occlusal diagnosis and subsequent management and treatment of malocclusion with osteoarthritis.Materials and methods: This case report presents the treatment process of a female patient (51 years, 6 months of age) with an acquired dual-bite malocclusion with severe osteoarthritis in the temporomandibular joint (TMJ). The occlusal condition of the patient was examined by a Digital Gothic Arch Tracer (DGAT, Gothic Display: Shofu Inc.). The GDAT was used as it provides an extra-oral tracing of jaw movements. While it is simple and easy to use, the accuracy remains impressively high, as several jaw motions are included into the final calculation.Results: The ensuing treatment plan was as follows: Upon the first examination, the occlusal position was recorded with DGAT. The DGAT data was then evaluated for correlations between the terminal points of the rapid habitual opening-closing movements (tapping points), apex point and speaking position. The gothic arch figure revealed that when approaching the terminal points of the tapping points and the speaking position, there was a separation at the apex point. From this, we reached a conclusion on the new occlusal position for tapping points and the speaking position. Based on the DGAT results, via the occlusal adjustment method, we set the new occlusal position. On their final visit the patient received Prosthodontics treatment. The DGAT was able to provide an avenue of examination that maintained the original occlusal position without raising the vertical dimension. Therefore, it was rather simple and exact to compare the Tapping points and Apex points.Conclusion: Using a Digital Gothic Arch Tracer, we successfully carried out the occlusal examination and treatment of a patient with osteoarthritis and malocclusion.","PeriodicalId":306414,"journal":{"name":"Prosthodontic Research & Practice","volume":"107 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116377228","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kunio Matsubara, H. Koshino, Yoshifumi Toyoshita, T. Hirai
The purpose of this study was to establish a noninvasive method of evaluating swallowing function using swallowing sounds. Four handicapped patients with congenital or postnatal dysphagia were selected as subjects and five healthy, fully dentate males were selected as control subjects. A jelly on the market for the elderly in need of nursing care was used as the test food. Ultra-sound diagnostic equipment and a heart-sound microphone were used to record tongue movements and swallowing sounds. Moreover, an endoscope was used to observe the bolus and larynx. In all healthy subjects, the first swallowing sound before endoscopic whiteout and the second swallowing sound after endoscopic whiteout were detected in the swallowing test. On the other hand, in all subjects with dysphagia, the first swallowing sound and endoscopic whiteout were detected. However the second swallowing sound was not detected clearly in the 3 subjects with congenital dysphagia. Waveforms of an unclear first swallowing sound or second swallowing sound were observed repeatedly in the subject with postnatal dysphagia. A part of the bolus aspirated into the trachea upon inspiration made some patients choke and cough. Our findings suggest that the bolus remaining around the epiglottis contributes to an increased risk of aspiration and that observation of the second swallowing sound may be effective in the evaluation of swallowing function.
{"title":"Evaluation Method of Swallowing Function by Swallowing Sound and Endoscope in Patients with Dysphagia","authors":"Kunio Matsubara, H. Koshino, Yoshifumi Toyoshita, T. Hirai","doi":"10.2186/PRP.7.177","DOIUrl":"https://doi.org/10.2186/PRP.7.177","url":null,"abstract":"The purpose of this study was to establish a noninvasive method of evaluating swallowing function using swallowing sounds. Four handicapped patients with congenital or postnatal dysphagia were selected as subjects and five healthy, fully dentate males were selected as control subjects. A jelly on the market for the elderly in need of nursing care was used as the test food. Ultra-sound diagnostic equipment and a heart-sound microphone were used to record tongue movements and swallowing sounds. Moreover, an endoscope was used to observe the bolus and larynx. In all healthy subjects, the first swallowing sound before endoscopic whiteout and the second swallowing sound after endoscopic whiteout were detected in the swallowing test. On the other hand, in all subjects with dysphagia, the first swallowing sound and endoscopic whiteout were detected. However the second swallowing sound was not detected clearly in the 3 subjects with congenital dysphagia. Waveforms of an unclear first swallowing sound or second swallowing sound were observed repeatedly in the subject with postnatal dysphagia. A part of the bolus aspirated into the trachea upon inspiration made some patients choke and cough. Our findings suggest that the bolus remaining around the epiglottis contributes to an increased risk of aspiration and that observation of the second swallowing sound may be effective in the evaluation of swallowing function.","PeriodicalId":306414,"journal":{"name":"Prosthodontic Research & Practice","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128307770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The purpose of this study was a clinical evaluation of injectable dental ceramic restorations. In this study, Ceraeste system based on Diopside was used for injectable dental ceramics. Ninty two injectable ceramic restorations were investigated in 36 patients by a questionnaire survey performed from December 7th, 2001 to July 7th, 2004. The mean service time of the restorations was 18 months. One crown on a mandibular first molar was fractured. It was concluded that new injectable glass-ceramic restorations are suitable for clinical use, although not totally without problem, especially with survival rate of the injectable glass-ceramics, which might be shorter than the other restorations. These findings should be investigated sequentially.
{"title":"Clinical Evaluation of Injectable Dental Ceramic Restorations","authors":"Toshiyuki Abe, Yutaka Ito","doi":"10.2186/PRP.7.150","DOIUrl":"https://doi.org/10.2186/PRP.7.150","url":null,"abstract":"The purpose of this study was a clinical evaluation of injectable dental ceramic restorations. In this study, Ceraeste system based on Diopside was used for injectable dental ceramics. Ninty two injectable ceramic restorations were investigated in 36 patients by a questionnaire survey performed from December 7th, 2001 to July 7th, 2004. The mean service time of the restorations was 18 months. One crown on a mandibular first molar was fractured. It was concluded that new injectable glass-ceramic restorations are suitable for clinical use, although not totally without problem, especially with survival rate of the injectable glass-ceramics, which might be shorter than the other restorations. These findings should be investigated sequentially.","PeriodicalId":306414,"journal":{"name":"Prosthodontic Research & Practice","volume":"34 25","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113937089","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mariko Kobayashi, C. Ohkubo, H. Shimpo, Yasutaka Ishikawa, D. Kurihara, T. Hosoi, Toshiyuki Murata
The objective of this study was to evaluate the retentive force of one-piece implant (Nobel Direct; Nobel Biocare, Sweden) -supported overdentures including a telescope system. The regular platform Nobel Direct (4.3 mm dia.) was embedded in a brass patrix frame (10 x 10 x 25 mm) using autopolymerized polymethyl methacrylate (PMMA; Unifast II, GC). Two sizes of O-rings [O1 (2.8 mm dia.) and O2 (3.8 mm dia.), SAN-EI, Japan] and protection caps (PC; Straumann) were placed on the Nobel Direct abutment head. The plastic patterns of the Konus telescope outer crown were fabricated on the Nobel Direct abutment head and cast using the GC autocast system. As a control, the PMMA resin (RE) was made to directly touch the abutment head. The patrix and matrix frames were connected under 2 kg and then mounted on a screw-driven mechanical testing machine (Model UTM II, Toyo Boldwin, Japan). The retentive force (n=5, N) obtained at a crosshead speed of 40 mm⁄min was analyzed by ANOVA⁄Scheffe's test (α=0.05). The larger O-ring had less retentive force than the smaller O-ring. The Konus telescope had a retentive force comparable to that of the smaller O-ring (p>0.05). Although the retentive forces of the Konus telescope tended to increase as the connecting load increased, the force of the O-ring did not vary according to the connecting loads. For the one implant-supported overdentures, not only a medium-sized O-ring and protection cap but also coping and Konus telescopes demonstrated having appropriate retentive force.
本研究的目的是评估一件式种植体的固位力(Nobel Direct;诺贝尔生物保健公司，瑞典)支持覆盖假牙，包括望远镜系统。常规平台Nobel Direct (4.3 mm直径)使用自聚合聚甲基丙烯酸甲酯(PMMA)嵌入黄铜骨架(10 x 10 x 25 mm);Unifast II, GC)。两种尺寸的o型圈[O1 (2.8 mm直径)和O2 (3.8 mm直径)，SAN-EI，日本]和保护帽(PC;施特劳曼)被放置在诺贝尔直接基台头部。采用GC自动铸造系统在诺贝尔直接基台头上制作了Konus望远镜外冠的塑料模型。作为对照，PMMA树脂(RE)直接接触基牙头。将矩阵和矩阵框架连接在2kg以下，然后安装在螺杆驱动的机械试验机(型号UTM II, Toyo Boldwin，日本)上。在十字速度为40 mm / min时获得的固位力(n=5, n)采用ANOVA / Scheffe’s检验(α=0.05)进行分析。较大的o型圈固位力小于较小的o型圈。Konus望远镜的固位力与较小的o形环相当(p>0.05)。虽然随着连接载荷的增加，Konus望远镜的固位力有增加的趋势，但o形圈的力不随连接载荷的增加而变化。对于单种植覆盖义齿，除了中等大小的o型环和保护帽外，顶部和Konus望远镜也具有适当的固位力。
{"title":"Retentive Force of the Konus Telescope on One-piece Implant","authors":"Mariko Kobayashi, C. Ohkubo, H. Shimpo, Yasutaka Ishikawa, D. Kurihara, T. Hosoi, Toshiyuki Murata","doi":"10.2186/PRP.7.216","DOIUrl":"https://doi.org/10.2186/PRP.7.216","url":null,"abstract":"The objective of this study was to evaluate the retentive force of one-piece implant (Nobel Direct; Nobel Biocare, Sweden) -supported overdentures including a telescope system. The regular platform Nobel Direct (4.3 mm dia.) was embedded in a brass patrix frame (10 x 10 x 25 mm) using autopolymerized polymethyl methacrylate (PMMA; Unifast II, GC). Two sizes of O-rings [O1 (2.8 mm dia.) and O2 (3.8 mm dia.), SAN-EI, Japan] and protection caps (PC; Straumann) were placed on the Nobel Direct abutment head. The plastic patterns of the Konus telescope outer crown were fabricated on the Nobel Direct abutment head and cast using the GC autocast system. As a control, the PMMA resin (RE) was made to directly touch the abutment head. The patrix and matrix frames were connected under 2 kg and then mounted on a screw-driven mechanical testing machine (Model UTM II, Toyo Boldwin, Japan). The retentive force (n=5, N) obtained at a crosshead speed of 40 mm⁄min was analyzed by ANOVA⁄Scheffe's test (α=0.05). The larger O-ring had less retentive force than the smaller O-ring. The Konus telescope had a retentive force comparable to that of the smaller O-ring (p>0.05). Although the retentive forces of the Konus telescope tended to increase as the connecting load increased, the force of the O-ring did not vary according to the connecting loads. For the one implant-supported overdentures, not only a medium-sized O-ring and protection cap but also coping and Konus telescopes demonstrated having appropriate retentive force.","PeriodicalId":306414,"journal":{"name":"Prosthodontic Research & Practice","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131586684","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. Takebe, Yoshihiro Nakasato, S. Ito, S. Kikuchi, S. Itoh, Tsukasa Shioyama, K. Ishibashi
In the present study, we assessed the effects of commercially pure titanium (cpTi) by anodic oxidation and hydrothermal treatment (SA-treated cpTi) on osteoblastic differentiation and interfacial bone formation through parallel in vitro and in vivo investigations. Osteoblast cells were cultured on SA-treated cpTi disks for 5, 7, 10, and 14 days. Bone matrix mineralization was assessed by EPMA. The levels of collagen I, alkaline phosphatase, osteocalcin, osteopontin, bone sialoprotein, and β-actin mRNA were analyzed using RT-PCR. In addition, SA-treated cpTi implants were placed in the mandibles of beagles for 14 days, and then examined histologically by light microscopy. Widespread Ca and P signals were observed early in the in vitro culturing period, and mRNA expression was up-regulated in cells that were in contact with the SA-treated cpTi. The bone-to-implant contact formed at the mandible SA-treated cpTi implant sites involved direct contact of the implant with the surrounding bone tissue. These results demonstrate the potential of SA-treated cpTi surfaces for enhancing surface-specific expression of osteoblastic phenotypes and for inducing changes in bone matrix gene expression.
{"title":"Surface Modification Enhances Osteoblast Behavior and Bone Formation on Thin Hydroxyapatite Layers Deposited Using a Novel Anodization-Hydrothermal Treatment on Commercially Pure Titanium Endosseous Implants","authors":"J. Takebe, Yoshihiro Nakasato, S. Ito, S. Kikuchi, S. Itoh, Tsukasa Shioyama, K. Ishibashi","doi":"10.2186/PRP.7.159","DOIUrl":"https://doi.org/10.2186/PRP.7.159","url":null,"abstract":"In the present study, we assessed the effects of commercially pure titanium (cpTi) by anodic oxidation and hydrothermal treatment (SA-treated cpTi) on osteoblastic differentiation and interfacial bone formation through parallel in vitro and in vivo investigations. Osteoblast cells were cultured on SA-treated cpTi disks for 5, 7, 10, and 14 days. Bone matrix mineralization was assessed by EPMA. The levels of collagen I, alkaline phosphatase, osteocalcin, osteopontin, bone sialoprotein, and β-actin mRNA were analyzed using RT-PCR. In addition, SA-treated cpTi implants were placed in the mandibles of beagles for 14 days, and then examined histologically by light microscopy. Widespread Ca and P signals were observed early in the in vitro culturing period, and mRNA expression was up-regulated in cells that were in contact with the SA-treated cpTi. The bone-to-implant contact formed at the mandible SA-treated cpTi implant sites involved direct contact of the implant with the surrounding bone tissue. These results demonstrate the potential of SA-treated cpTi surfaces for enhancing surface-specific expression of osteoblastic phenotypes and for inducing changes in bone matrix gene expression.","PeriodicalId":306414,"journal":{"name":"Prosthodontic Research & Practice","volume":"34 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130885905","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Patient: A 70-year-old edentulous woman with a flap reconstruction presented Kyushu University Dental Hospital for a masticatory dysfunction because of insufficient retention and stability with her complete denture. She had received 5 implants in the mandible for an implant-supported fixed prosthesis. Although an implant-supported fixed prosthesis could provide improved stability and function, the fixed prosthesis and lack of keratinized mucosa led to the difficulty of cleaning. To improve oral hygiene, an implant-supported overdenture was fabricated after free gingival graft from palate. However, a failure in the graft union and the subgingival plaque resulted in peri-implantitis. The patient received open flap debridement and was treated with antibiotics. Although the patient had used this prosthesis with a slight inflammation for 5 years, a deep pocket was observed around the implant. As a treatment of peri-implantitis, abrasive debridement with beta-TCP was performed. Up to the present, the patient healed uneventfully.Discussion: The implant-supported prosthesis is an alternative to the conventional removable denture and is used to provide predictable retention, stability and function in a flap reconstruction patient. However, we should consider the patient's cleaning ability and the condition of soft tissue around implants.Conclusion: Prosthodontic treatment planning is a complex process that involves various factors such as the surgical factors, occlusion, superstructure and oral hygiene. If we make a plan in the light of these factors, implant-supported prosthesis must offer better function, comfort and predictable result to the patients.
{"title":"Prosthetic and Surgical Managements of Peri-implantitis at the Flap Reconstruction Site","authors":"Y. Ogino, Kohei Toriya, Y. Ayukawa, K. Koyano","doi":"10.2186/PRP.7.231","DOIUrl":"https://doi.org/10.2186/PRP.7.231","url":null,"abstract":"Patient: A 70-year-old edentulous woman with a flap reconstruction presented Kyushu University Dental Hospital for a masticatory dysfunction because of insufficient retention and stability with her complete denture. She had received 5 implants in the mandible for an implant-supported fixed prosthesis. Although an implant-supported fixed prosthesis could provide improved stability and function, the fixed prosthesis and lack of keratinized mucosa led to the difficulty of cleaning. To improve oral hygiene, an implant-supported overdenture was fabricated after free gingival graft from palate. However, a failure in the graft union and the subgingival plaque resulted in peri-implantitis. The patient received open flap debridement and was treated with antibiotics. Although the patient had used this prosthesis with a slight inflammation for 5 years, a deep pocket was observed around the implant. As a treatment of peri-implantitis, abrasive debridement with beta-TCP was performed. Up to the present, the patient healed uneventfully.Discussion: The implant-supported prosthesis is an alternative to the conventional removable denture and is used to provide predictable retention, stability and function in a flap reconstruction patient. However, we should consider the patient's cleaning ability and the condition of soft tissue around implants.Conclusion: Prosthodontic treatment planning is a complex process that involves various factors such as the surgical factors, occlusion, superstructure and oral hygiene. If we make a plan in the light of these factors, implant-supported prosthesis must offer better function, comfort and predictable result to the patients.","PeriodicalId":306414,"journal":{"name":"Prosthodontic Research & Practice","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115649565","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yutaka Yamada, Mitsuo Iwata, Yukumi Nagata, T. Etoh, T. Kawazoe
In our continually aging society, dental care professionals now have the option of using implants in addition to conventional defect prosthodontics to repair defects, and we can now better respond to a variety of defects. However, there are growing demands from patients for not only the recovery of oral function, but also strong urgings for the therapy to focus on prosthodontic morphology, esthetics, a shortening of the duration of the therapy, and convenience, among others.
{"title":"A Chronological Stability Evaluation of Implanted Structures via Resonance Frequency Analysis","authors":"Yutaka Yamada, Mitsuo Iwata, Yukumi Nagata, T. Etoh, T. Kawazoe","doi":"10.2186/PRP.7.228","DOIUrl":"https://doi.org/10.2186/PRP.7.228","url":null,"abstract":"In our continually aging society, dental care professionals now have the option of using implants in addition to conventional defect prosthodontics to repair defects, and we can now better respond to a variety of defects. However, there are growing demands from patients for not only the recovery of oral function, but also strong urgings for the therapy to focus on prosthodontic morphology, esthetics, a shortening of the duration of the therapy, and convenience, among others.","PeriodicalId":306414,"journal":{"name":"Prosthodontic Research & Practice","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116984095","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The principle of dental treatment focuses on to achieve a good balance between “maintaining the residual tissues in healthy condition” and “the functional recoveries”. At first, the two major prerequisite for the residual tissues maintenance are bacterial control and mechanical loading force control, through pre-operative microbial test, and examinations and diagnostics of residual tissues such as temporomandibular joint, muscular groups, existing teeth, periodontal tissues, and residual ridges. Secondly, the functional recoveries are to increase the rate to the utmost of various functions of stomatognathic system as mastication, swallowing, respiration pronunciation and sensation, including aesthetics.
{"title":"Principle of Treatment on the Removable Prosthodontics","authors":"K. Koide","doi":"10.2186/PRP.7.120","DOIUrl":"https://doi.org/10.2186/PRP.7.120","url":null,"abstract":"The principle of dental treatment focuses on to achieve a good balance between “maintaining the residual tissues in healthy condition” and “the functional recoveries”. At first, the two major prerequisite for the residual tissues maintenance are bacterial control and mechanical loading force control, through pre-operative microbial test, and examinations and diagnostics of residual tissues such as temporomandibular joint, muscular groups, existing teeth, periodontal tissues, and residual ridges. Secondly, the functional recoveries are to increase the rate to the utmost of various functions of stomatognathic system as mastication, swallowing, respiration pronunciation and sensation, including aesthetics.","PeriodicalId":306414,"journal":{"name":"Prosthodontic Research & Practice","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115986569","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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