Satisfaction level and masticatory performance of patient rehabilitated with implant-supported overdentures / Nível de satisfação e performance mastigatória de pacientes reabilitados com sobredentaduras suportada por implantes

Purpose: To compare the masticatory performance and satisfaction levels of subjects with normal dentition and subjects with implant-supported overdentures with two types of attachments (ball and bar-clip retention systems). Methods: The sample comprised 24 subjects, 12 edentulous patients and 12 dentate subjects. The denture wearers received two dental implants and new maxillary and mandibular dentures. Three months after the first surgical phase, the mandibular dentures were connected to the implants by a gold ball attachment. Two months later new mandibular overdentures were made with a bar-clip attachment. Satisfaction levels (modified OHIP-EDENT and verbal rating scale) and masticatory performance (chewing for 40 masticatory cycles) were measured with the old dentures, with the unattached new dentures, and with the new dentures with ball and bar-clip attachments. Data were analyzed by Friedman and chi-square tests. Results: Both masticatory performance and satisfaction levels significantly improved after implant treatment. No significant differences were observed between the overdentures with ball and bar attachments. However, the masticatory performance after treatment was still significantly lower than the performance of the healthy subjects. Conclusion: The rehabilitation of edentulous patients with overdenture with ball or bar-clip attachment improves both satisfaction and masticatory performance, but the outcomes levels are not equal as those found for dentate subjects.

Objetivo: Comparar o nível de satisfação e a performance mastigatória dos indivíduos com dentição normal e pacientes reabilitados com uma sobredentadura suportada por implantes com dois tipos de conectores diferentes, sistema de retenção bola e barra. Metodologia: Vinte e quatro indivíduos participaram do estudo, sendo 12 pacientes desdentados e 12 indivíduos dentados totais. Os desdentados receberam dois implantes e novas dentaduras, superiores e inferiores. Três meses depois da primeira fase cirúrgica, a dentadura inferior foi conectada aos implantes através do sistema bola. Dois meses depois, uma nova sobredentadura inferior foi realizada, porém desta vez conectado através do sistema barra-clipe. O nível de satisfação (OHIP-EDENT adaptado e escala verbal de medição) e a performance mastigatória (mastigação por 40 ciclos mastigatórios) foram medidos em vários momentos do tratamento, com as dentaduras antigas, novas não conectadas por implantes, e depois de ter conectado a sobredentadura pelo sistema bola e barra-clipe. O teste de Friedman e o teste qui-quadrado foram aplicados para analisar os resultados.Resultados: O nível de satisfação e a performance mastigatória melhoraram significativamente após a reabilitação com os implantes. Nenhuma diferença foi observada entre as sobredentaduras com sistema bola e barra-clipe. Entretanto, a performance mastigatória ainda permaneceu significativamente menor que a performance dos indivíduos dentados. Conclusão: A reabilitação de pacientes edêntulos reabilitados com sobredentadura com bola ou barra-clipe melhora tanto o nível de satisfação quanto a performance mastigatória, porém ainda abaixo do nível dos indivíduos com dentição normal.

Satisfaction level and masticatory capacity in edentulous patients with conventional dentures and implant-retained overdentures

The difficulty of totally edentulous individual in performing the basic oral functions in a satisfactory and pleasant way directs the investigations for improvement of the rehabilitation techniques. This study aimed to perform an intra-patient analysis of the satisfaction level and masticatory capacity during the phases of the rehabilitation treatment with osseointegrated implants. Twelve edentulous patients (mean age: 61 years) participated. Satisfaction level and masticatory capacity were analyzed based on specific questionnaires for edentulous patients and by a verbal rating scale from 0 to 10, at three moments: with the old dentures, with conventional new ones after they had been received two osseointegrated implants in the mandible (after 60 days of use). After 5 months of the first surgical phase, gold cap ball attachments were adapted and the last evaluation was performed with the upper denture and the lower overdenture, after 30 days of use. The Friedman test was applied. The rehabilitation with implants produced a significant improvement in the satisfaction level (95.83%) and the masticatory capacity (94.07%). The new full dentures produced a better satisfaction and masticatory capacity than the old dentures. Besides, lower overdenture supported by two osseointegrated implants and a new upper conventional denture produced a higher scores than the conventional new dentures.