J Dent Rehabil Appl Sci.  2019 Sep;35(3):113-122. 10.14368/jdras.2019.35.3.113.

Diagnosis of tooth wear

• Lee H
• Ko KH
• Huh YH
• Park CJ
• Cho LR

• KMID: 2463620
• DOI: http://doi.org/10.14368/jdras.2019.35.3.113

Abstract

Tooth wear is gradually increasing with increasing life expectancy. In particular, it is important to establish a treatment plan in the early stages so that it does not proceed to moderate or severe wear stages. It is essential to diagnose tooth wear accurately in order to plan a treatment for it. There are many risk factors including age, diet, and drugs which affects tooth wear. For the diagnosis of a tooth wear, appropriate index and evaluation method should be used. There were various tooth wear indices such as TWI, Lussi index, BEWE, and TWES. The evaluation method includes clinical examination, dental cast examination and clinical photographs. Recently, a 3D scanner is being used to assess tooth wear. The risk factors, tooth wear evaluation system, the methods of measuring tooth wear, and related literature were reviewed. The strengths and weaknesses of each index and evaluation methods were compared to derive a proper way to diagnose tooth wear.

Keyword

tooth wear; dental erosion; diagnosis; index; risk factor

MeSH Terms

Diagnosis*
Diet
Life Expectancy
Methods
Risk Factors
Tooth Wear*
Tooth*

Figure

• 

  Fig. 1 Example of tooth wear scoring with clinical photographs by TWES (tooth wear evaluation system) (B: buccal surface, O: occlusal surface, P:palatal surface, L: lingual surface). All TWES scores were 1, 2, which represented the early stage of generalized occlusal wear. According to the TWES guidelines, counselling/monitoring is recommended.

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  Fig. 2 Example of tooth wear scoring with dental cast by TWES (tooth wear evaluation system) (B: buccal surface, O: occlusal surface, P: palatal surface, L: lingual surface). TWES scores in the cast are generally increased compared to that of the clinical examination. It appears to have increased because the surface texture can be observed well in the cast.

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  Fig. 3 Example of tooth wear scoring with 3D scanning of dental cast by TWES (tooth wear evaluation system) (B: buccal surface, O: occlusal surface, P: palatal surface, L: lingual surface). TWES scores are increased compared to the scores measured in the cast. This is assumed to be due to differences in resolution and scan errors. Note the indeterminate cervical abrasion in maxillary right second premolar. Because the scan was scanned, the errors in the scan were replicated in scanned data.

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  Fig. 4 Possible errors. (A) Maxillary second molars are covered by soft tissue, (B) Void in buccal surface of maxillary right second premolar

Reference

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