Abstract
Introduction: Statistic distribution of Kennedy's classifications and tooth loss among general population are important reasons to assess the dentures needs and impact of preventive dentistry in any society. Aim: To determine the frequency and pattern of Kennedys classification among Jazan population in relation to different age group, gender, sites and causes of tooth loss. Material and methods: The data was collected between May 2014 and May 2015 from patients who required removable partial dentures. Clinical intra-oral and radiographic examinations were done, then the data were registered and the Kennedy classes and causes of teeth loss were recorded. The number of subjects participated were 339 male and 240 female. They were divided into five groups, 20-29, 30-39, 40-49, 50-59 and ≥ 60 years respectively. All relevant data were entered into SPSS program and analyzed accordingly using Fisher exact test. Results: The highest number of patients among males and females were in age group of 50-59 year. Kennedy’s class III was the highest among all age groups. In males, class III Kennedy classification was the highest in both arches, while class I was the highest in female. Periodontal disease was the major cause of tooth loss in both genders, followed by dental caries. A combination of both causes was founded in less than 10% of subjects. There were significant differences between all groups. The obtained P values were statistically significant (p<.000). Conclusion: Kennedys Class III had highest frequency in males in all age groups and in both arches whereas in females, Kennedys class I was the highest. Periodontal disease was the most common cause of tooth loss in all genders followed by dental caries.
Highlights
Statistic distribution of Kennedy's classifications and tooth loss among general population are important reasons to assess the dentures needs and impact of preventive dentistry in any society
The purpose of this study was to determine the pattern of the partial edentulism and its relationship with certain variables such as age group, gender, arch and teeth loss causes, amongst patients examined at College of Dentistry, Jazan University, Saudi Arabia
Class III Kennedy classification was the most prevalent among all age groups; 35.1% of Class III were in 30-39 age group regarding maxillary arch and 43.1% in 50-59 age group regarding mandibular arch
Summary
Statistic distribution of Kennedy's classifications and tooth loss among general population are important reasons to assess the dentures needs and impact of preventive dentistry in any society. Aim: To determine the frequency and pattern of Kennedys classification among Jazan population in relation to different age group, gender, sites and causes of tooth loss. Results: The highest number of patients among males and females were in age group of 50-59 year. Class III Kennedy classification was the highest in both arches, while class I was the highest in female. Periodontal disease was the major cause of tooth loss in both genders, followed by dental caries. Conclusion: Kennedys Class III had highest frequency in males in all age groups and in both arches whereas in females, Kennedys class I was the highest. Periodontal disease was the most common cause of tooth loss in all genders followed by dental caries. Periodontitis, orthodontics, trauma, prosthetic treatments and combinations of these, have been cited as some of the common reasons for extraction of teeth in the available literatures Various surveys on the causes of tooth loss in different countries have been conducted and have produced some controversy regarding whether periodontal and /or caries diseases are the main reasons for tooth loss [2,3,4]
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