Conclusion Costs for repeated treatment of post-orthodontic enamel damages produced by conventional vestibular fixed appliances may easily exceed the initially higher costs associated with lingual orthodontic treatment .
Judged economically in the long term , lingual MB Tx may be considered as a more cost-effective solution for a correction of malocclusion
Background Post-orthodontic white-spot lesions ( WSL ) in esthetically relevant incisor and canine areas impair dentofacial esthetics , and preventive dentistry treatment is definitely required in case of enamel cavitations .
The incidence of lingual post-orthodontic WSL and cavitation following lingual MB treatment has been reported to be distinctively decreased compared to labial MB treatment .
Moreover , lingual WSL do not impair dentofacial esthetics .
It was the objective of this study to calculate consequential costs of preventive dental care necessary to recover labial or lingual post-orthodontic cavitations as well as esthetically relevant WSL following either labial or lingual MB interventions .
Durability of esthetic improvement following Icon resin infiltration of multibracket-induced white spot lesions compared with no therapy over 6 months: a single-center, split-mouth, randomized clinical trial.
INTRODUCTION White spot lesions that form during orthodontic treatment are a problem for patients and clinicians . Lesion infiltration with low-viscosity light-cured resin has been proposed as a treatment to inhibit further demineralization . The purpose of this study was to assess the durability of assimilation of white spot lesions and sound adjacent enamel achieved over 6 months with resin infiltration . METHODS Twenty-one consecutive subjects with 231 noncavitated , unrestored white spot lesions after multibracket treatment were recruited at the Department of Orthodontics , University of Göttingen ( Germany ) , for lesion infiltration . A simple r and omized , split-mouth , controlled design was used to allocate subjects to the treatment and control groups . In the treatment group , white spot lesion infiltration of the anterior teeth was performed with low-viscosity light-cured resin after enamel conditioning with a 15 % HCl gel .  Color and lightness of the white spot lesions and the sound adjacent enamel were assessed with a spectrophotometer before infiltration and after 1 day , 1 week , 4 weeks , 3 months , and 6 months , using the system of the Commission Internationale de l'Eclairage . Multifactorial analysis of variance with repeated measures and pair-wise comparisons were used to analyze the effects of infiltration and time elapsed on the color differences at an α level of 5 % and a power of 80 % . RESULTS Analysis of 20 subjects and 39 quadrants in each group ( 108 teeth in the control group ; 111 teeth in the treatment group ) showed that both parameters of treatment and time duration had globally a highly significant influence on the color difference values . Assimilation of white spot lesion color to the surrounding enamel after infiltration was stable with no significant changes over 6 months ; the mean color difference of white spot lesions vs sound adjacent enamel ( ΔE baseline vs 6 months ) was 2.55 ( 95 % confidence interval [ CI ] , 1.431 - 3.678 ) . The untreated control teeth showed no significant changes over 6 months compared with the baseline : mean ( ΔE ) , 0.29 ( 95 % CI , -0.335 - 0.928 ) . No important adverse events or side effects were observed . CONCLUSIONS Resin infiltration  improves the esthetic appearance of demineralized teeth . The results showed sufficient durability over 6 months
Conclusion Costs for repeated treatment of post-orthodontic enamel damages produced by conventional vestibular fixed appliances may easily exceed the initially higher costs associated with lingual orthodontic treatment .
Judged economically in the long term , lingual MB Tx may be considered as a more cost-effective solution for a correction of malocclusion
Background Post-orthodontic white-spot lesions ( WSL ) in esthetically relevant incisor and canine areas impair dentofacial esthetics , and preventive dentistry treatment is definitely required in case of enamel cavitations .
The incidence of lingual post-orthodontic WSL and cavitation following lingual MB treatment has been reported to be distinctively decreased compared to labial MB treatment .
Moreover , lingual WSL do not impair dentofacial esthetics .
It was the objective of this study to calculate consequential costs of preventive dental care necessary to recover labial or lingual post-orthodontic cavitations as well as esthetically relevant WSL following either labial or lingual MB interventions .