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The technique of immediate implantation has been widely used to reduce treatment time and bone loss after extraction. However, immediate implant placement in infected extraction sockets is generally contraindicated. This clinical report describes a treatment protocol for immediate implantation after the extraction of teeth with generalized chronic periodontitis. The technique used for the oral rehabilitation used computer-assisted design and computer-assisted manufacturing (CAD-CAM) titanium frameworks and cemented zirconia crowns. The titanium frameworks overcame suboptimal implant position and the cemented crowns provided excellent function and esthetics despite the locations of screw-access openings. No clinical complications occurred during a 13-month follow-up. 相似文献
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Ting Lu Ling Peng Fu Xiong Xiao-Yu Lin Ping Zhang Zhi-Ting Lin Bu-Ling Wu 《The Journal of prosthetic dentistry》2018,119(3):363-368
Statement of problem
The introduction of polymer-infiltrated ceramic network (PICN) materials may provide more options for dentists in restoring short clinical crowns and extensively damaged posterior teeth, but clinical data for their performance are lacking.Purpose
The purpose of this clinical study was to compare the 3-year performance and survival rates of PICN material with those of conservative ceramic onlay restorations for endodontically treated posterior teeth using the CEREC AC chair-side system.Material and methods
A total of 101 onlay restorations of endodontically treated posterior teeth using the CEREC AC chair-side system were provided in 93 participants. The 101 teeth were divided into 2 groups: Vita Enamic group and Vitablocs Mark II group. Using the modified US Public Health Service quality evaluation system, 2 calibrated evaluators examined the performance of the onlay restorations over 3 years. The Kaplan-Meier method was adopted to analyze the survival rate of restorations (α=.05). The log rank test was used to compare the survival rates of the 2 groups. The Fisher exact test was performed to detect differences in the success rates for extensively damaged teeth and short clinical crown restorations between the 2 groups. The Silness and Löe gingival index was also recorded.Results
The restoration survival rates in the 2 groups were 97.0% (Vita Enamic) and 90.7% (Vitablocs Mark II) (P>.05). Five failures were recorded (4.95%). These failures were caused by restoration debonding (60%), ceramic fractures (20%), and tooth fractures (20%). There were no significant differences between the success rates of restoring extensively damaged teeth and short clinical crowns between the 2 groups (P>.05). The periodontal condition of 25% of participants was improved 3 years after the onlay restorations.Conclusions
Onlay restorations of endodontically treated posterior teeth with Vita Enamic using the CEREC AC chair-side system are clinically promising prosthodontic alternatives, with a survival rate of 97.0% after 3 years. More research is needed to verify the results of this study. 相似文献3.
Kanchan P. Dholam Jinesh A. Dugad Karthik M. Sadashiva 《The Journal of prosthetic dentistry》2017,117(4):559-562
Statement of problem
The treatment of oral cancers affects oral functions and quality of life (QOL). Dental rehabilitation is a major step toward enhancing quality of life after controlling the disease. The effects of the disease, treatment, and rehabilitation need to be evaluated to assess oral health-related QOL. The Liverpool Oral Rehabilitation Questionnaire version 3 (LORQv3) and Oral Health Impact Profile-14 (OHIP-14) are specific assessment questionnaires of oral rehabilitation.Purpose
The purpose of this study was to assess the impact of oral rehabilitation on patients with head and neck cancer by using the LORQv3 and OHIP-14 questionnaires and to discover and document specific patient-derived problems related to the issues of oral rehabilitation.Material and Methods
The LORQv3 and OHIP-14 questionnaires were administered to 60 participants with oral cancer, who were in need of oral rehabilitation. They were asked to rate their dental problems on a Likert scale before fabrication of their prostheses (baseline) and at the 3-month follow-up visit after prosthetic rehabilitation. Paired comparison was done using the Wilcoxon signed rank test according to the distribution, and Cronbach alpha was used to assess internal consistency. Subscale scores were determined by mean value (α=.05).Results
For the LORQv3 questionnaire, a 10% to 27% improvement was found in the domain of oral function, and a 20% improvement in orofacial appearance, with improvement in patient satisfaction with the prosthesis. Using the OHIP-14 questionnaire, a 45% to 67% improvement was generally seen in all domains.Conclusions
After assessment using the LORQv3 and OHIP-14 questionnaires, prosthetic rehabilitation was seen to contribute to the betterment of patients with head and neck cancer. 相似文献4.
An appliance was designed and fabricated by using computer-aided design and computer-aided manufacturing (CAD-CAM) and 3-dimensional (3D) printing to combine a custom tray with an intraoral Gothic arch. This helped simplify centric relation recording and combined definitive impression making and centric relation recording into a single step. 相似文献
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H. Liu Y. Wang C. Wu X. Sun L. Li C. Li Q. Chen E. Luo 《The British journal of oral & maxillofacial surgery》2019,57(10):967-976
To compare the effectiveness and safety of robotic surgery with that of open operations for patients with cancers of the head and neck we made an electronic search of the CENTRAL, MEDLINE, EMBASE, CNKI, CBM, Opengray and Sciencepaper Online databases, and then made a manual search of specific online databases and the reference lists of relevant papers. Our most recent searches were made on 18 July 2018, and we included randomised controlled trials (RCT), case-control studies, cohort studies, and cross-sectional surveys in which robotic was compared with open surgery for cancer of the head and neck. Data from all the studies included were extracted by two independent workers. The risk ratio was chosen to measure dichotomous effects of treatment for prospective studies including RCT or cohort studies, while the odds ratio was chosen for case-control or cross-sectional studies. The weighted mean difference or standard mean difference was chosen to summarise continuous effects. A random-effects model was used for all data analyses. Thirteen studies were included: one RCT, nine cohort studies, and three cross-sectional studies. Robotic surgery was associated with fewer invaded resection margins, lower recurrence, less need for intraoperative tracheostomy, and less need and shorter duration of postoperative nasal feeding than open operations. Robotic surgery is a safe and feasible approach with remarkable superiority over open surgery for the treatment of cancers of the head and neck. 相似文献