Mandibular third molars: 'naughty' or NICE?

Donnell, Christopher C.; Clark, MV

doi:10.1038/s41415-020-1433-x

Cited by 2 publications

(1 citation statement)

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“…Low impacted mandibular third molars (LIMTMs) generally have no obvious symptoms and are often found during imaging examinations [ 7 , 8 ]. In many cases, however, by the time symptoms appear in the impacted mandibular third molars, irreversible damage such as adjacent tooth root resorption and jawbone cysts or tumors may have already occurred.…”

Section: Introductionmentioning

confidence: 99%

Full life cycle changes of low impacted mandibular third molar associated cystic lesions and adjacent tooth root resorption: a retrospective study

Zhang,

Zhou

et al. 2024

BMC Oral Health

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Objective Low impacted third molars are usually asymptomatic and are often found by X-ray examination. The removal of asymptomatic low impacted third molars is one of the most controversial clinical issues in oral and maxillofacial surgery. Methods In this study, 806 patients with low impacted mandibular third molars (LIMTMs) (full bony impaction) were analyzed to determine the prevalence and risk factors for cystic lesions and adjacent tooth root resorption throughout the patients’ entire life cycle. Results The results showed that the prevalence of adjacent tooth root resorption and cystic lesions was age-related, exhibiting a trend of first increasing and then decreasing; prevalence peaked at the age of 41 to 45 years old, the prevalence rates were 12.50% and 11.11% respectively. And the lowest prevalence rate was 2.86% and 2.44% in ≥ 61 group and 56- to 60-year age group respectively. Age was an independent risk factor for adjacent tooth root resorption of LIMTMs, whereas age and impaction type (especially inverted impaction) were independent risk factors for cystic lesions. Conclusions The full life cycle management strategy for LIMTMs may need to be individualized. Surgical removal is recommended for LIMTMs in patients younger than 41 to 45 years, especially for inverted, mesioangular, and horizontally impacted LIMTMs. LIMTMs in patients older than 41 to 45 years may be treated conservatively with regular follow-up, but surgical removal of inverted impacted LIMTMs is still recommended to avoid cyst formation.

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Section: Introductionmentioning

confidence: 99%