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Related Experiment Video

Updated: Jul 19, 2025

The Establishment of a Murine Mandibular Molar Extraction Socket Healing Model

The Establishment of a Murine Mandibular Molar Extraction Socket Healing Model

Published on: January 13, 2023

Masticatory performance with one missing molar.

Masaoki Yokoyama¹, Hiroshi Shiga¹, Kunihisa Nakajima¹

¹Department of Partial and Complete Denture, School of Life Dentistry at Tokyo, The Nippon Dental University.

Journal of Oral Science

|August 9, 2023

Summary

This summary is machine-generated.

Even one missing molar significantly impairs chewing ability. Prosthetic treatments help but do not fully restore masticatory performance to the level of having natural teeth.

Keywords:

dentate side masticatory function masticatory performance missing side one missing molar prosthetic treatment

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Last Updated: Jul 19, 2025

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Area of Science:

Dental Science
Biomaterials Science

Background:

Masticatory performance is crucial for nutrient intake and overall health.
Tooth loss, particularly molars, can significantly impact chewing efficiency.

Purpose of the Study:

To evaluate the impact of a single missing molar on masticatory performance.
To compare chewing efficiency between individuals with and without prosthetic treatment for a missing molar.

Main Methods:

156 adults with one missing molar were divided into prosthetic (Group B) and non-prosthetic (Group A) groups.
Masticatory performance was assessed by measuring the amount of glucose eluted (AG) from gummy jelly after chewing.
AG was compared between the missing and non-missing sides, and between first and second molar loss.

Main Results:

Masticatory performance was significantly reduced on the side with a missing molar (P < 0.001).
Individuals with a missing first molar showed significantly less glucose eluted (P = 0.002).
Overall decrease in AG was 11.1% (all participants), 14.3% (Group A), and 8.4% (Group B).

Conclusions:

Losing even a single molar negatively affects masticatory performance.
Prosthetic treatment improves chewing efficiency but does not fully restore it to the level of natural dentition.