Transition from being OK to NOT OK with tooth loss among a selection of older people in Iran: a qualitative study.

BACKGROUND: Several studies have covered oral health and dental decay in old age, but these studies mostly applied standard quantitative tools and did not include consideration of older people's views on oral problems, partial edentulism in particular. OBJECTIVE: To explore people's perceptions in terms of the transition from being OK to NOT OK with tooth loss among a selection of older people in Iran. MATERIALS AND METHODS: A qualitative content analysis study was chosen for the research by interviewing 15 older people using open-ended questions. Criteria for participation in the study were as follows: fitting the Kennedy class I or class I modification I category, having a minimum of four teeth but not more than 20 and being aged 60 years or more. The recorded interviews were then transcribed, and a coding process was applied based on a qualitative, conventional content analysis. RESULTS: The four main themes that emerged were as follows: (i) gradual realisation of the need to deal with the problem; (ii) the search for information on dental health; (iii) the challenge of adaptation; and (iv) tendency towards dental rehabilitation. CONCLUSION: The turning point in the transition from being OK to NOT OK seemed to be associated with an edentulous crisis that had occurred from another problem such as stomach ache, distention, or nocturnal dyspnoea due to swallowing food that had not been properly chewed and had an affect on an elderly person's life, physically and mentally. It is important to recognise the concept of healthy eating in relation to edentulism.

A comparison of the healing capabilities of various grafting materials in critical-size defects in guinea pig calvaria.

PURPOSE: To estimate the efficacy of various bone grafting materials in the healing of 8-mm-diameter critical-size defects (CSD) in guinea pig calvaria. METHODS: In this randomized trial study, critical-size defects were created in the calvaria of 36 guinea pigs 6 months of age. Animals were assigned into three groups and each received one of three experimental protocols. In protocol A, the right-side defect was filled with macroporous biphasic calcium phosphate (MBCP Gel) and the left side was left empty as a control. In protocol B, the right-side defect was filled with demineralized freeze-dried bone allograft (DFDBA) and the left side was filled with Stypro. In protocol C, the right-side defect was filled with Bio-Oss and the left side was filled with autogenous bone. The percentage of new bone formation was evaluated histomorphometrically after 8 weeks. RESULTS: The mean bone formation was 68.19% for autogenous bone, 66.96% for MBCP Gel, 57.28% for Bio-Oss, 50.19% for DFDBA, 18.79% for Stypro, and 10.61% for the empty control. Except for the MBCP Gel and autogenous bone groups (P = .6), the differences between the other groups were statistically significant (P < .05). CONCLUSION: The results of this study indicated that all the testing materials had different capacities to produce new bone in CSD of guinea pig calvaria. MBCP Gel showed promising results in producing new bone proportionate to the autogenous bone graft group.