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Internal bleaching of teeth: an analysis of 255 teeth.
Aust Dent J. 2009 Dec; 54(4):326-33.AD

Abstract

BACKGROUND

Studies about bleaching have not analysed factors that affect the outcome. This aim of this study was to analyse the outcome of, and the factors associated with bleaching.

METHODS

Internal bleaching was done on 255 teeth in 203 patients. Colour was assessed pre-operatively, postoperatively and at recalls. The cause and type of discolouration, number of applications, bleaching outcome, and colour stability were assessed.

RESULTS

The most common teeth were upper central (69 per cent) and lateral (20.4 per cent) incisors. Trauma was the most common cause (58.8 per cent), followed by previous dental treatment (23.9 per cent), pulp necrosis (13.7 per cent) and pulp canal calcification (3.6 per cent). Dark yellow and black teeth required more applications of bleach than light yellow and grey teeth. Colour modification was "good" (87.1 per cent) or "acceptable" (12.9 per cent). Teeth restored with glass ionomer cement/composite resin had good colour stability, but this was less predictable with other restorations. No teeth had external invasive resorption.

CONCLUSIONS

Bleaching endodontically treated teeth was very predictable, especially for grey or light yellow discolourations. Glass ionomer cement/composite restorations were effective at preventing further discolouration. Patient age and tooth type did not affect treatment outcome and no cases of external invasive resorption were observed.

Authors+Show Affiliations

School of Dentistry, The University of Western Australia, Nedlands WA. paul.v.abbott@uwa.edu.auNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

20415931

Citation

Abbott, P, and S Y S. Heah. "Internal Bleaching of Teeth: an Analysis of 255 Teeth." Australian Dental Journal, vol. 54, no. 4, 2009, pp. 326-33.
Abbott P, Heah SY. Internal bleaching of teeth: an analysis of 255 teeth. Aust Dent J. 2009;54(4):326-33.
Abbott, P., & Heah, S. Y. (2009). Internal bleaching of teeth: an analysis of 255 teeth. Australian Dental Journal, 54(4), 326-33. https://doi.org/10.1111/j.1834-7819.2009.01158.x
Abbott P, Heah SY. Internal Bleaching of Teeth: an Analysis of 255 Teeth. Aust Dent J. 2009;54(4):326-33. PubMed PMID: 20415931.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Internal bleaching of teeth: an analysis of 255 teeth. AU - Abbott,P, AU - Heah,S Y S, PY - 2010/4/27/entrez PY - 2010/4/27/pubmed PY - 2010/7/14/medline SP - 326 EP - 33 JF - Australian dental journal JO - Aust Dent J VL - 54 IS - 4 N2 - BACKGROUND: Studies about bleaching have not analysed factors that affect the outcome. This aim of this study was to analyse the outcome of, and the factors associated with bleaching. METHODS: Internal bleaching was done on 255 teeth in 203 patients. Colour was assessed pre-operatively, postoperatively and at recalls. The cause and type of discolouration, number of applications, bleaching outcome, and colour stability were assessed. RESULTS: The most common teeth were upper central (69 per cent) and lateral (20.4 per cent) incisors. Trauma was the most common cause (58.8 per cent), followed by previous dental treatment (23.9 per cent), pulp necrosis (13.7 per cent) and pulp canal calcification (3.6 per cent). Dark yellow and black teeth required more applications of bleach than light yellow and grey teeth. Colour modification was "good" (87.1 per cent) or "acceptable" (12.9 per cent). Teeth restored with glass ionomer cement/composite resin had good colour stability, but this was less predictable with other restorations. No teeth had external invasive resorption. CONCLUSIONS: Bleaching endodontically treated teeth was very predictable, especially for grey or light yellow discolourations. Glass ionomer cement/composite restorations were effective at preventing further discolouration. Patient age and tooth type did not affect treatment outcome and no cases of external invasive resorption were observed. SN - 1834-7819 UR - https://www.unboundmedicine.com/medline/citation/20415931/Internal_bleaching_of_teeth:_an_analysis_of_255_teeth_ L2 - https://doi.org/10.1111/j.1834-7819.2009.01158.x DB - PRIME DP - Unbound Medicine ER -