Comparison of periodontal parameters after the use of orthodontic multi-stranded wire retainers and modified retainers

Marlice Azoia LUKIANTCHUKI, Roberto Massayuki HAYACIBARA, Adilson Luiz RAMOS

Objective: The objective of the present study was to compare two types of fixed orthodontic retainers (a multi-stranded wire retainer and a modified retainer) in relation to established periodontal parameters. The multi-stranded wire retainer is commonly used, and the modified retainer has bends to enable free access of dental floss to interproximal areas. Methods: For this cross-over study, 12 volunteers were selected and used the following retainers for six months: (A) a multi-stranded wire retainer and (B) a modified retainer. Both retainers were fixed to all anterior lower teeth. After this experimental period, the following evaluations were made: Dental Plaque Index, Gingival Index, Dental Calculus Index and Retainer Wire Calculus Index. The volunteers also responded to a questionnaire about the use, comfort and hygiene of the retainers. Results: It was observed that the plaque index and the gingival index were higher on the lingual surface (p<0.05) for the modified retainer. Furthermore, the calculus index was statistically higher (p<0.05) for the lingual and proximal surfaces when using the modified retainer. The retainer wire calculus index values were also significantly higher (p<0.05) for the modified retainer. In the questionnaire, 58% of the volunteers considered the modified retainer to be less comfortable and 54% of them preferred the multi-stranded wire retainer. Conclusion: From the results obtained, it could be concluded that the multi-stranded wire retainer showed better results than the modified retainer according to the periodontal parameters evaluated, as well as providing greater comfort and being the retainer preferred by the volunteers.

Keywords: Orthodontic retainers. Gingival index. Plaque index. Calculus index.

How to cite: Lukiantchuki MA, Hayacibara RM, Ramos AL. Comparação de parâmetros periodontais após utilização de contenção ortodôntica com io trançado e contenção modiicada. Dental Press J Orthod. 2011 July-Aug;16(4):44-6.

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