Complexities in the study of occlusion have set tough challenges for both under graduate and post-graduate students and the introduction of osseointegrated implants has further complicated these challenges. The principles of occlusion are applied by dentists for the natural dentition directly to implant-supported and retained restorations. Although successful, this rationale at times may result in overly complex or simplified treatment protocols and outcomes. The focus of this review is mainly on currently available scientific literature involving dental implant occlusion. The authors reviewed the English peer-reviewed literature prior to 1996 in a comprehensive manner, and the material post 1996 was reviewed electronically using MEDLINE. Electronic searches of the literature were performed in MEDLINE using key words - cohort studies, complete denture occlusion, clinical trial, case studies, dental implant function, dental implant occlusion, dental implant occlusion research, dental implant functional loading, dental implants, dental occlusion, dental occlusion research, denture function, denture occlusion, dentures, implant function, implant functional loading, implant occlusion, occlusion, and removable partial denture occlusion - in various combinations to obtain potential references for review. A total of 4445 English language titles were obtained, many of which were duplicates due to multiple searches. Manual hand searching of the MEDLINE reference list was performed to identify any articles missed in the original search.

Objective: To determine the sociodemographic factors that affects the usage of complete dentures. Material and Methods: A structured questionnaire was administered to edentulous patients seen in a prosthetic outpatient department of the Lagos University Teaching Hospital, Lagos, Nigeria. Complete dentures were fabricated, assessed, and fitted, and the patients were followed up for six months. Information sought included demographics of the subjects, their socioeconomic status, reason for demand for complete dentures, and important considerations for its use. Data were analyzed using the Statistical Package for Social Sciences version 16.0 (SPSS 16). The level of statistical significance was set at P < 0.05. Results: Thirty patients participated in the study. The mean age of patients seen was 63.30 ± 17.67 years. Grouping of subjects into socioeconomic levels by occupation showed that one-third (33.3%) was classified as dependent. Twenty-one patients (70%) requested for both upper and lower dentures, six patients (20%) wanted upper dentures only, and three patients (10%) requested for lower dentures only. The commonest reason for demand for complete dentures was mastication (100%), followed by aesthetics (63%). The reasons for the use of dentures were basically aesthetics and mastication. Conclusion: Demand for complete dentures was greater among those 60 years and above. Age, gender, and socioeconomic status of patients had no statistically significant effect on the reason for demand for and usage of dentures.

Facial defects result from tumor, congenital anomaly and external injury not only leads to serious impairment of function and aesthetics, but also makes the patient psychologically disabled. Prosthetic rehabilitation attempts to restore these facial disfigurements may improve aesthetic, level of function, quality of life. This clinical report describes to rehabilitate a patient who has undergone removal of nasal bridge and focal area of frontal bone due to infiltration of carcinoma with the aid of maxillofacial silicone prosthesis. In present case, nasal bridge and frontal bone prosthesis was made combined in single epithesis to achieve retention with the help glass spectacles and anatomical undercuts of surgically excised area.