Abstract
The period of functional adaptation to a new conventional complete denture embraces many transitory issues, and this period is directly related to the rehabilitation success. This clinical trial evaluated the influence of the height of mandibular ridge on the masticatory function of complete denture (CD) wearers during the adaptation period. A total of 28 individuals wearing new CDs (NR, n=14, normal mandibular ridges, 64±12.5 years, 9 female; RR, n=14, resorbed mandibular ridges, 69±6.8 years, 9 female) were assessed at 24 hours, 30 days, three months and six months after the insertion of the CDs for masticatory performance (MP, sieves method), satisfaction with CDs (questionnaire) and maximum occlusal bite force (MOBF) (gnatodynamometer). The classification of the mandibular ridges followed the Kapur index. Data of MP and MOBF were analyzed by two-way ANOVA and satisfaction with CDs was analyzed by Generalized Estimating Equations (GEE), α=.05. Participants with NR presented better masticatory performance (p=.000 - NR 30.25±9.93%, RR 12.41±7.17%), general satisfaction (p=.047), retention of mandibular denture (p=.001), chewing ability (p=.037), and comfort of wearing a mandibular denture (p=.000). Regardless of the mandibular ridge, MP (p=.000) was higher at three (21.26±12.07%) and six months (24.25±12.26%) in comparison to 24 hours (18.09±10.89%), the MOBF (p=.000) was higher at three months (78.50±6.49 N) compared to 24 hours (57.34±5.55 N) and 30 days (62.72±5.97 N), and the comfort of wearing a mandibular denture (p=.002) at three months (1.61 ± 0.07) was greater than 24 hours (1.29±0.10) and 30 days (1.36±10). The study suggests that the participants with NR have higher MP and satisfaction with their CD, regardless of the follow-up period after the insertion of the new CD. After subjects received the CD, a period of 3 months was necessary for achieving better achievement MOBF, MP, and self-perceived comfort with the mandibular denture, regardless of the height of the mandibular ridge.
Highlights
Edentulism has been frequently observed worldwide for centuries.1 The rehabilitation with conventional complete denture (CD) is the first option for edentulous individuals because it is economically more viable than implant-supported dentures, a significant option for rehabilitation.2,3 Some studies have shown that treatment with conventional CD provides a high level of satisfaction among their users (65-90%),3 providing these patients with improved masticatory and phonetic functions, increased bite force, and quality of life.4The period of functional adaptation begins after the patients receive the new conventional CDs
This clinical trial evaluated the influence of the height of mandibular ridge on the masticatory function of complete denture (CD) wearers during the adaptation period
This study demonstrated that the height of the mandibular ridge influenced the self-perception of general satisfaction, the retention of the mandibular complete denture, the chewing ability and the comfort of wearing a mandibular denture as better for participants with normal mandibular ridges, regardless of the follow-up period
Summary
Edentulism has been frequently observed worldwide for centuries. The rehabilitation with conventional complete denture (CD) is the first option for edentulous individuals because it is economically more viable than implant-supported dentures, a significant option for rehabilitation. Some studies have shown that treatment with conventional CD provides a high level of satisfaction among their users (65-90%), providing these patients with improved masticatory and phonetic functions, increased bite force, and quality of life.4The period of functional adaptation begins after the patients receive the new conventional CDs. Some studies have shown that treatment with conventional CD provides a high level of satisfaction among their users (65-90%), providing these patients with improved masticatory and phonetic functions, increased bite force, and quality of life.. Mandibular dentures are usually the greatest cause of discomfort and low satisfaction among denture wearers due to their poor retention and stability, hampering one’s adaptation.. A hypothesis for this hampered adaptation is related to a lower mandibular area and the process of resorption of the alveolar ridge after extraction or tooth loss, which occurs with greater intensity in the mandible.. The post-insertion period of CDs should not be neglected by the professional, since it is directly related to the success or failure of treatment Many problems, transitory, may occur and they directly influence the rehabilitation success. Mandibular dentures are usually the greatest cause of discomfort and low satisfaction among denture wearers due to their poor retention and stability, hampering one’s adaptation. A hypothesis for this hampered adaptation is related to a lower mandibular area and the process of resorption of the alveolar ridge after extraction or tooth loss, which occurs with greater intensity in the mandible. Studies have already shown that advanced age and the use of drugs with xerostomic effect are factors that can influence the patients’ adaptation and the number of returns after the insertion of these dentures. the post-insertion period of CDs should not be neglected by the professional, since it is directly related to the success or failure of treatment
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