Influence of adaptation of removable partial denture on masticatory performance.

Abstract

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 sieve 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. Dentures were designed and fabricated by an expert operator. MP was evaluated in old RPD (MP1), recently inserted RPD (MP2) and adapted RPD (MP3). The simple sieve test used was Edlund-Lamm in percentage of MP, using Optosil® Comfort condensation silicone tablets, with standard sizes (5.0x20mm). 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.

The effect of a removable acrylic partial denture based on Kennedy’s classification of masticatory ability

“…These findings are supported by Nakouzi et al who also demonstrated that removable partial denture has a strong connection with masticatory ability due to their important role in restoring oral function and health following teeth loss. Thus, the use of dentures like the ones utilized herein may have a positive impact on patient satisfaction and quality of life [7,17].…”

“…There are many factors that influence the reason why the acrylic-made removable partial dentures that were made in the RSKGM FKG UI have not been able to restore the ability of mastication on the seventh day after the insertion of the denture, even though it was convenient to use. Work conducted by Nakouzi et al suggests that the average time for a person to adapt to removable partial dentures s about 32.5 days [7].…”

“…Considering the fact that the subjects herein were only wearing the dentures for 7 days, it could be the reason why the subject with classes 1 and 2 Kennedy showed poor masticatory ability. The adaptation process for each is personal and subjective and depends on the individual's psychological factors [7].…”

“…The use of removable partial dentures aims to restore the function of a missing tooth, including mastication abilities as well as the phonetic, aesthetic, and oral health of the patient [6]. A recent investigation conducted by Nakouzi et al revealed that removable partial dentures play a deterministic role in restoring function and oral health due to the loss of teeth [7]. Another study also demonstrated that removable partial dentures can improve mastication when the denture is comfortable, and the patient can adapt to masticating using the denture [8].…”

“…The classification of tooth loss helps the dentist to determine the appropriate design of dentures by the location and the number of teeth lost. An appropriate denture design will yield a comfortable denture, improve masticatory performance, and will not injure the oral soft tissues [7,9]. The classification that is commonly used and generally accepted is Kennedy's classification [10].…”