Posterior occlusal support and self-reported chewing discomfort beyond the number of remaining teeth in Korean adults: KNHANES 2007 – 2018

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The loss of posterior occlusal support is a major determinant of chewing discomfort, and when accounted for, the total number of remaining teeth no longer provides its expected protective association. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

Seon‐Jip Kim; Jung‐Hee Bae

doi:10.14368/jdras.2026.42.3.238

August 31, 2026Journal of Dental Rehabilitation and Applied ScienceOpen Access

Posterior occlusal support and self-reported chewing discomfort beyond the number of remaining teeth in Korean adults: KNHANES 2007 – 2018

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Key Points

To examine whether the location of tooth loss, specifically posterior occlusal support, relates to chewing discomfort independently of the total number of remaining teeth.
Analyzed pooled cross-sectional data from 60,306 dentate adults aged 19 years or older from the Korea National Health and Nutrition Examination Survey (KNHANES 2007–2018).
Quantified posterior occlusal support as the count of occluding antagonist premolar or molar pairs (posterior occluding pairs).
Applied complex-survey logistic regression to calculate adjusted odds ratios (aOR) for self-reported chewing discomfort while controlling for total remaining teeth and covariates.
Each additional posterior occluding pair was independently associated with reduced odds of chewing discomfort (aOR, 0.749; 95% CI, 0.732–0.767).
Chewing discomfort rates varied substantially by posterior support at an identical tooth count, affecting 30.9% versus 45.9% of adults with 20–24 teeth.
Posterior tooth loss increased discomfort odds (aOR, 1.126), whereas anterior tooth loss did not, and total tooth count lost its expected protective association after accounting for posterior support.

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Implication

Cross-sectional survey reveals posterior occluding pairs reduce chewing discomfort in adults, indicating tooth location is more critical than total tooth count.

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Kim et al. (2026) studied this question.

synapsesocial.com/papers/6a9934ea636c6408cfa7ca11 https://doi.org/10.14368/jdras.2026.42.3.238

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Posterior occlusal support and self-reported chewing discomfort beyond the number of remaining teeth in Korean adults: KNHANES 2007 – 2018

Key Points

No abstract yet

Implication

Discussion

Cite This Study

Posterior occlusal support and self-reported chewing discomfort beyond the number of remaining teeth in Korean adults: KNHANES 2007 – 2018

Key Points

No abstract yet

Implication

Discussion

Cite This Study

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