The purpose of this study was to assess the knowledge diabetic patients have of their risk for periodontal disease, their attitude towards oral health and their oral health-related quality of life (OHRQL). One hundred and one consecutive patients (age range 31-79 years) recruited from a diabetic outpatient clinic participated in the study. Twenty-seven per cent of participants had type 1 diabetes, 66% type 2 and 7% did not know what type of diabetes they had. The length of time since participants were diagnosed as diabetic ranged from 1 to 48 years. Metabolic control of diabetes as determined by HbA1c levels ranged from 6.2% to 12.0% compared with the normal range of 4.5-6.0%. Thirty-three per cent of participants were aware of their increased risk for periodontal disease, 84% of their increased risk for heart disease, 98% for eye disease, 99% for circulatory problems and 94% for kidney disease. Half of the participants who were aware of their increased risk for periodontal disease had received this information from a dentist. Dental attendance was sporadic, with 43% reporting attendance within the last year. OHRQL was not significantly affected by the presence of diabetes in the group surveyed, in comparison with a previous survey of non-diabetic patients. A significant association was found between metabolic control and dentate status. Awareness of the potential associations between diabetes, oral health and general health needs to be increased in diabetic patients.

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There is limited understanding of the subjective impact of congenital absence of teeth in patients with hypodontia. This study aimed to investigate the impact of mild, moderate and severe hypodontia on oral health-related quality of life (OHRQoL) and its relationship to age, gender and extent of hypodontia prior to treatment. 82 patients (43 females and 39 males, age range from 16 to 34 years) with a confirmed diagnosis of non-syndromic hypodontia were recruited for this study prior to treatment. Demographic details were recorded and a clinical examination documented the number and location of missing teeth. Participants were also asked to complete an oral health-related quality of life measure, the OHIP-49. The impact was of hypodontia was significant, with appearance concerns being the most prevalent impacts on oral health-related quality of life. Gender was a significant predictor of the overall OHIP-49 score, with females having higher level of impacts. The number and location of missing permanent teeth was not a good predictor of quality of life. However, location of missing teeth was a predictor of the psychological discomfort subscale score. There was a positive correlation between age and the functional limitation and physical disability subscale scores. This study shows that the impact of hypodontia on oral health-related quality of life is substantial.

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Congenital absence of teeth affects 2-6 per cent of the population, but its impact on quality of life (QoL) is not fully understood. The symptoms of hypodontia can vary and therefore also the treatment and management of this condition. Determining and understanding the possible impact of hypodontia on patients could inform and improve the management of such patients. A purposive sample of 10 participants aged 16-25 years (five males and five females) with mild, moderate, or severe hypodontia at various stages of treatment was recruited. The participants had previously completed a 49-item Oral Health Impact Profile (OHIP) questionnaire with summary scores ranging from 24 to 143. All subjects participated in semi-structured interviews, and these were transcribed and analysed using NVivo software. The results show that the role of hypodontia patients in the treatment decision-making process changes significantly as they move from childhood to adulthood. Participants indicated dissatisfaction with the lack of communication with dental services throughout early adolescence as they became more cognizant of their condition which in turn led to concerns with regard to appearance which impacted on their psychosocial well-being. Hypodontia patients expect improved communication with dental practitioners and services as they become more cognizant of their condition and wish to become more actively involved in the decision-making process regarding their current and future treatment.