This review comparing orthodontically induced external apical root resorption (EARR) in root-filled teeth and vital pulp teeth included 11 mainly retrospective studies . The findings suggest less EARR in root-filled teeth but the evidence is of very low certainty.
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This review looking at the optimal force magnitude for achieving orthodontic tooth movement included 12 studies suggesting there is weak to moderate evidence showing that forces ranging between 50 cN and 100 cN are optimal for the rate of orthodontic tooth movement.
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This reviews of external root resorption (ERR) in patients receiving clear aligners treatment (CAT) with those being treated with fixed appliances included 11 observational studies. While the findings suggest ERR may be lower in patients treated with CAT the quality of the evidence is limited.
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This review of the efficiency of the vibrating devices in accelerating orthodontic tooth movement identified 6 RCTs the majority being short term and at high risk of bias. The RCTs suggested no difference with the use of vibrational devices.
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This review evaluating the incidence of root resorption (RR) after the replantation of avulsed teeth included 23 studies of low quality providing a estimate of RR that should be viewed cautiously.
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This review of success and survival rates and complications of autotransplantation of teeth with incomplete root formation included 32 observational studies only 5 of which were considered to be of high quality. Good success rates were noted but findings should be interpreted cautiously
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This review of canine autotransplantation included 6 low quality studies are suggests good survival although both resorption and ankylosis increase after 5 years
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This Cochrane review was seeking to identify RCTs of interventions for the management of external root resorption in permanent teeth. No published trials were identified, so clinicians must decide on the most appropriate means of managing this condition according to their clinical experience with regard to patient-related factors.
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This review of root perforation repair included 17 studies that were mainly retrospective and small. The overall success rates for all materials was = 72.5% (CI; 61.9%–81.0%) with a suggestion of better rates for MTA. However, the quality of the evidence was low.
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Orthodontically induced external apical root resorption (OIEARR) has been classified as surface resorption caused by loss of cementum. Usually this is superficial and unidentifiable radiographically but if this occurs apically it can be seen as shortening of the tooth. Typically OIEARR is less than 2mm and clinically insignificant. OIEARR greater than 4mm is severe and [read the full story…]
