Title: 0144 - Comparison of Conventional and Laser- Aided Fiberotomy in Relapse Tendency


Amirfarhang Miresmaeili (Presenter)
Hamadan University of Medical Sciences

milad malekshoar, Hamadan University of Medical Sciences


Objectives: The aim of the present study was to compare the tendency of mandibular incisor rotation relapse after conventional circumferential supracrestal fiberotomy (CSF) with Er,Cr:YSGG laser-aided CSF.

Methods: In this three-arm parallel study, the patients with one lower incisor rotation greater than 30 degrees before treatment were selected. The patients were randomly assigned to three groups in a 1:1:1 ratio based on gender and the severity of rotation (less or greater than 50 degrees). Rotational relapse tendency was measured on digitized model one month after arch wire removal. Probing depth and clinical crown height and pain levels were also measured. Both investigators in charge of outcome recording and data analysis were blinded regarding group allocations. Kolmogorov-Simonov test, ANCOVA with Bonferroni correction, and Kruskal-Wallis test were used for statistical analysis.

Results: A total of 46 patients were recruited; one patient from the control group and another one in the laser group were excluded due to lack of compliance. Relapse tendency in conventional CSF and laser-aided CSF groups were 5.09° ± 1.59° and 4.87° ± 2.08°, respectively, and significantly lower than 11.28° ± 2.93° in the control group (P<0.001). Relapse tendency was not different between the conventional CSF and laser CSF groups. Probing depth, clinical crown height, and experienced pain levels exhibited negligible differences among the three groups. No serious harm was observed other than mild blunting of interdental papilla in two cases of laser group.

Conclusions: Er,Cr:YSGG laser-aided CSF in one month was as effective in reducing rotational relapse tendency of mandibular incisor teeth as conventional CSF.

This abstract is based on research that was funded entirely or partially by an outside source:
Hamadan University of Medical Sciences

Disclosure Statement:
The submitter must disclose the names of the organizations with which any author have a relationship, the nature of the relationship, and the clinical or research area involved. The following is submitted: Hamadan University of Medical Sciences