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Published on: June 23, 2009
The association between mucosal pain and subjective masticatory function in patients with partial removable dental
Kenji Fueki1, Eiko Yoshida-Kohno1, Yuka Inamochi1
1Removable Partial Prosthodontics, Oral Health Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan.
Background:
Improvement of masticatory function is critical in prosthetic treatment. Multiple factors are related to patients' perception of chewing ability in denture wearers. However, the associations between such factors and chewing ability have not yet been fully elucidated.
Objective:
To investigate the association between mucosal pain and subjective masticatory function in patients with partial removable dental prostheses (PRDPs).
Methods:
This cross-sectional study included 333 consecutive patients with PRDPs (mean age 71.2 years, male 33.3%) who were recruited from the prosthetic clinic of a dental hospital in Japan. Patients' perception of chewing ability was evaluated using a food intake questionnaire consisting of 20 items, and chewing difficulty was rated by patients using an 11-point numerical scale. Participants rated the pain intensity of the denture-supporting mucosa and oral dryness while chewing. In addition, the bilateral maximal biting force (MBF) was recorded. A structural equation model was used to identify the factors associated with chewing ability and chewing difficulty.
Results:
The model indicated that mucosal pain, oral dryness, the number of occluding pairs, the denture type (interim/definitive PRDPs) and the MBF were significant independent predictors of chewing ability and chewing difficulty (P < 0.01).
Conclusions:
Our findings suggest that mucosal pain is a risk factor for impairment of subjective masticatory function in patients with PRDPs. It is clinically important to consider the denture design and to select denture base materials with regard to the prevention of mucosal pain.
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