External root resorption following bleaching of pulpless teeth with oxygen peroxide

Abstract

Cvek M, Lindvall A-M. External root resorption following bleaching of pulpless teeth with oxygen peroxide. Endod Dent Traumatol 1985; 1: 56-60.Abstract -Eleven teeth in which bleaching with 30% oxygen peroxide was followed by external root resorption are presented. One tooth had no traumatic history, while the others were previously subluxated or luxated in accidental injury. Radiographic appearance of resorptions varied. In 2 teeth the resorptions were only superficial and did not progress during the observation time. In 5 teeth the resorptions were associated with ankylosis. In the remaining 4 teeth the resorption was progressive, bowlshaped and associated with radiolucency in the adjacent alveolar bone. It was suggested that damage to the periodontium, caused by oxygen peroxide at the time of treatment, may heal or be followed by ankylosis and, when complicated by bacterial contamination, develop to a progressive root resorption associated with persistent inflammatory changes in periodontal tissues.

Tooth Bleaching—a Critical Review of the Biological Aspects

“…A high concentration of hydrogen peroxide in combination with heating seemed to promote cervical root resorption (Friedman et al, 1988;Baratieri et al, 1995), in line with observations made in animal experiments (Madison and Walton, 1990;Rotstein et al, 1991b;Heller et al, 1992). The underlying mechanism for this effect is unclear, but it has been suggested that the bleaching agent reaches the periodontal tissue through the dentinal tubules and initiates an inflammatory reaction (Cvek and Lindvall, 1985). It has also been speculated that the peroxide, by diffusing through the dentinal tubules, denatures the dentin, which then becomes an immunologically different tissue and is attacked as a foreign body (Lado et al, 1983).…”

Hydrogen peroxide tooth-whitening (bleaching) products: Review of adverse effects and safety issues

“…37 In vitro studies using extracted teeth showed that hydrogen peroxide placed in the pulp chamber penetrated the dentine, 38 that heat increased the penetration 39 and that the penetration is greater in teeth with cervical cemental defects. 40 Intracoronal bleaching with 30% hydrogen peroxide reduces the microhardness of dentine and enamel 41 and mechanically weakens the dentine.…”

Bleaching Discoloured Nonvital Teeth Using Walking Bleaching Technique: Case Report

“…26,27 Bu yüz-den önceden yapılan kontrollerle erken teşhis konulabilmektedir. Yaptığımız olgularda hastalar 3 ve 6 ay sonra kontrole çağırılmışdır.…”