Abstract
Objective: To compare the masticatory performance (MP) of patients with old removable partial denture (RPD), recently inserted RPD and already adapted RPD by means of the simple mixing ability test. Material and Methods: Twenty-nine adult (>18 years old) volunteer patients were recruited, with lower and upper RPD, excluding total edentulous subjects in the upper and lower jaw, with temporomandibular disorders, severe periodontal disease, mental disability or systemic disease compromising the masticatory or nervous system. Prostheses were designed and fabricated by an expert operator. MP was evaluated in old RPD (MP1), recently inserted RPD (MP2) and adapted RPD (MP3). The mixing ability test used was Edlund-Lamm in percentage of MP, using Optosil® Comfort condensation silicone tablets, with standard sizes (5.0 x 20mm). In each phase, the patient chewed the tablet with 20 masticatory strokes. The crushed fragments were dried at 80°C for 60 minutes and weighed on an analytical scale. A multiple vibration sieve analysis was performed, using sieves with opening sizes of 2.8mm and 1.4mm. Shapiro-Wilk test and Anova test with Bonferroni correction were performed. Results: It was observed that MP1 presented a mean of 8.40% (SD±5.59), MP2 a mean of 8.56% (SD±5.56), and MP3 a mean of 18.26% (SD±8.12). There was a significant difference (p<0.05) between the MP1-MP3 groups, as well as between the MP2-MP3 (p<0.05). Conclusion: There is a significant increase in MP thirty days after the insertion of RPD, checkups, and adjustments performed by the dentist.
Highlights
The increase in life expectancy has had consequences in the human body, and a strong impact on public and private health care.[1]
masticatory performance (MP) was evaluated in old removable partial denture (RPD) (MP1), recently inserted RPD (MP2) and adapted RPD (MP3)
There is a significant increase in MP thirty days after the insertion of RPD, checkups, and adjustments performed by the dentist
Summary
The increase in life expectancy has had consequences in the human body, and a strong impact on public and private health care.[1] Loss of teeth, and its subsequent decrease in masticatory ability and efficiency, is one of the most frequent conditions affecting quality of life in numerous ways,[2,3] even resulting in cognitive impairment in older adults.[4] Given the above, some authors[5,6] point out that the restoration of an adequate masticatory function is one of the main goals in dentistry as it improves dietary, systemic, mental and physical functions of the human body. Prostheses play an important role in restoring health and oral function,[7] almost paralleling the masticatory ability of patients with complete dentition.[8] Masticatory function can be described in objective terms as a person's ability to chewing solid food. Silva et al.[10] showed that the MP’s mean of patients rehabi-
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