Determination of the distal extension of mandibular complete denture base in relation to the retromolar pad coverage

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Phyo Ei Ei Htay
Thiri Kyaw
Than Swe

Abstract

The correct denture base outline is one of the fundamental important factors in order to obtain successful complete denture, which should provide not only the good technical qualities of denture but also patient satisfaction, especially patient comfort. It is more difficult to be achieved in mandibular complete denture. In fact, there is a controversy about its coverage extent on the retromolar pads as there are various concepts among different authors. This study, therefore, had been designed to determine the distal margin of removable mandibular complete denture base in relation to the retromolar pad coverage by comparing the retention and comfort among different coverage levels of the retromolar pads. Twenty edentulous patients (Ten patients with high well-rounded alveolar ridges and ten patients with low well-rounded alveolar ridges) were included. After denture base plate had been made, the retention and comfort among different coverage levels (Posterior third, Middle third and Anterior third) of the retromolar pads were measured and analyzed. In both types of the ridge, when the denture base plates were reduced from posterior third to middle third coverage, the retention was not significantly different (p>0.05) while patient comfort scores were significantly increased. In contrast, the retention of the denture base plates was significantly decreased (p<0.001) whereas the patient comfort scores were not significantly different after reducing to anterior third coverage. Therefore, it was concluded that the mandibular complete denture should be extended up to the middle third region of the retromolar pads in both types of the ridge.

Article Details

How to Cite
Htay, P. E. E., Kyaw, T., & Swe, T. (2021). Determination of the distal extension of mandibular complete denture base in relation to the retromolar pad coverage. Myanmar Dental Journal, 27(1), 54–59. Retrieved from http://mda-journals.com/index.php/mdj/article/view/12
Section
Original Research