en پریودنتولوژی Periodontology پژوهشي Research <p> <strong>Background:</strong> This study evaluates the effect of periodontitis on masticatory performance and quality of life index. </p><p> <strong>Methods:</strong> Patients (n = 24 23 to 76 years of age) with periodontal conditions ranging from healthy to generalized disease categorized by the alveolar bone height–to–tooth length (AB/T) ratio were separated into the following two groups: control (AB/T >50%) and test (AB/T <50%). The masticatory performance was evaluated through continuous mastication of a special device called a biocapsule. The Brazilian Oral Health Impact Profile (OHIP-14Br) questionnaire was used to assess the oral health–related quality of life. The Student t test was applied for independent samples (P <0.05) to evaluate the masticatory performance, and the Mann-Whitney U test was used to determine quality of life (P <0.05) </p><p> <strong>Results:</strong> There was a statistically significant difference in masticatory efficiency between groups (P = 0.006). Statistically significant differences were also observed in the following parameters: 1) physical pain (P = 0.003) 2) psychologic discomfort (P = 0.008) 3) physical disability (P = 0.033) and 4) OHIP-14Br total score (P = 0.001). The control group achieved the best indicators. Both the masticatory performance and quality of life indicators showed significant correlation with the alveolar bone height. </p><p> <strong>Conclusion</strong>: The loss of periodontal supporting structures has negative effects on the masticatory performance and quality of life. </p><hr><p></p><p> <strong>Source: </strong>Journal of Periodentology </p><p> <a href="http://www.joponline.org/doi/abs/10.1902/jop.2012.120069" target="_blank"><font color="#0000ff">Full Text</font></a></p> Alveolar bone loss, bone resorption, mastication, periodontal diseases, quality of life 0 0 http://idai.ir/browse.php?a_code=A-10-32-1265&slc_lang=en&sid=1 Tânia de Freitas Borges 10031947532846005538 10031947532846005538 No Department of Morphology, Stomatology, and Physiology, Ribeirão Preto Dental School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil Simone C. Regalo schregalo@forp.usp.br 10031947532846005539 10031947532846005539 Yes Department of Morphology, Stomatology, and Physiology, Ribeirão Preto Dental School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil Mário Taba Jr. 10031947532846005540 10031947532846005540 No Department of Oral Maxillofacial Surgery and Traumatology and Periodontology, Ribeirão Preto Dental School, University of São Paulo Selma Siéssere 10031947532846005541 10031947532846005541 No Department of Morphology, Stomatology, and Physiology, Ribeirão Preto Dental School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil Wilson Mestriner Jr. 10031947532846005542 10031947532846005542 No Department of Pediatric Clinics, Preventive and Social Dentistry, Faculty of Dentistry of Ribeirão Preto Dental School, University of São Paulo Marisa Semprini 10031947532846005543 10031947532846005543 No Department of Morphology, Stomatology, and Physiology, Ribeirão Preto Dental School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil