A Review of the Literature A systematic review of orthodontic retention systems: The verdict

ConclusionDespite the large number of studies devoted to orthodontic retention only a few articles corresponded to the methodological criteria of bio statistical analysis. Also, on account of the variations in experimental protocols, the levels of proof relating to the efficacy of different systems are very weak. Research into this topic should first seek to normalize methods of analysis and then perform randomized controlled long-term trials to shed light on this problem.
Source: Dental Technology Blog - Category: Dentistry Source Type: news