Abstract
Invasive
multiple cervical root resorptions after vital tooth bleaching is a
rare condition. The aim of this article is to present a case of multiple
external cervical root resorptions (ECRR) after a misguided home
whitening treatment. A 34 year old male patient presented with slight
sensitivity and mobility in several teeth. Despite the manufacturer's
recommendations, the patient used a 22% carbamide peroxide-based tooth
bleaching gel at home for 4 days consecutively, at night, on the upper
and lower arches. Clinical examination revealed gingival swelling,
probing depths ranging 5–7 mm on the buccal and proximal surfaces, and
grade 2 mobility of the teeth affected by ECRR. Radiographs revealed
presence of ECRR in several teeth during initial examination, and
development of multiple new lesions 6 months later. The teeth were
subsequently extracted. Histological analysis showed multiple dentine
lacunae and areas of dentine reparation. The careful use of these
products can prevent sequelae such as those reported in this clinical
case. As the vital bleaching has a variable success rate, patients
should be informed through a consent form of the benefits and risks of
tooth bleaching treatment.
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