Oral health self-perception, maximum bite force and masticatory efficiency in patients with overdentures with different attachments systems

Author(s)

Amanda Laísa de Oliveira Lima

• Document type: Master's Dissertation
• Press: Araraquara. 2018-10-02.
• Institution: Universidade Estadual Paulista (Unesp). Faculdade de Odontologia. Araraquara
• Defense date: 2018-06-05
• Advisor: João Neudenir Arioli Filho

Abstract

Most patients rehabilitated with conventional dentures feel dissatisfied due to problems with retention and stability, especially when they are user of mandibular conventional dentures. A satisfactory option of treatment is the use of removable total dentures supported by implants (overdentures), connected through different attachments systems. The aim this study was to evaluate with two different attachments systems (O-ring and Locator) for mandibular overdenture retained by a single implant on the self-perception of oral health, quality of life impact, maximum bite force, and masticatory efficiency. To evaluete impact of oral health on quality of life and self-perceived oral health were using the OHIP-Edent and GOHAI questionnaires, respectively. To avaluated bite force was using a gnathodynamometer, and with respect to masticatory efficiency, was using a dense condensation silicone cubes and almonds with 30 cycles, 40 cycles until the patient feel "ready to swallow". Statistical analysis of data was performed with tests subsequent: Friedman and Wilcoxon (to questionnaires using a mean to the scores), t-student, two-way ANOVA test for repeated measures and Pearson's Correlation (maximum bite force and masticatory efficiency). In the questionnaires OHIP-Edent and GOHAI. it was not observed statistical diference in relation to two types of attachments analyzed. In the maximum bite force test, the attachment of type O'ring provided a maximum bite force higher when compared the Locator attachment (p=0,04), in addition, the higher this maximum bite force, lower the number of masticatory cycle realized up to the moment "ready to swallow", independent of the food. In masticatory efficiency test, was observed wich not have statistical diference in relation the type of attachment in both the food (p>0.05) but can afirm that masticatory efficiency was directly proportional the quantity of masticatory cycles only to almonds (p<0.01). Therefore, can conclude that the choice of attachment of type O'ring to overdentures influenced on maximum bite force (AU)

• FAPESP's process: 16/17688-3 - Oral health self-perception, maximum bite force and masticatory efficiency in patients with overdentures with different locking systems
• Grantee: Amanda Laísa de Oliveira Lima
• Support Opportunities: Scholarships in Brazil - Master