In vivo study of the Er:YAG laser in deciduous teeth: effectiveness and efficiency analysis on the removal of cavity detriment, microbiologic evaluation of prepared cavities and restorations made

• Grant number: 11/00272-5
• Support Opportunities: Regular Research Grants
• Start date: November 01, 2011
• End date: October 31, 2013
• Field of knowledge: Health Sciences - Dentistry - Dental Clinics
• Principal Investigator: Silmara Aparecida Milori Corona
• Grantee: Silmara Aparecida Milori Corona
• Host Institution: Faculdade de Odontologia de Ribeirão Preto (FORP). Universidade de São Paulo (USP). Ribeirão Preto , SP, Brazil
• Associated researchers: Maria Cristina Borsatto ; Mônica Campos Serra ; Rodrigo Alexandre Valério

Abstract

The performance of procedures that remove smaller amounts of healthy dental tissue, providing greater comfort and less sensibility to pediatric patients is an aspiration of Dentistry. Thus, this study aims to evaluate in vivo the effect of Er:YAG laser in the effectiveness and efficiency of partial removal of carious lesions, microbiology analysis of the prepared cavities, clinical and photographic analysis of restorations. Eighty children (n=80) who present at least two active carious lesions with cavitation reaching dentin located on occlusal surface of molars counterparts will be selected. Teeth of each child will be randomly assigned into two groups: (I): Er:YAG laser (250mJ/ 4 Hz to partial cavity opening and partial removal of carious lesions) and (II) conventional method (high speed turbine to remove cavosurface enamel, low speed turbine and curettes to partially remove carious tissue. The efficiency of the partial removal of carious lesions will be evaluated by counting the time using a digital stopwatch. To assess the efficacy, visual and tactile evaluation will be performed with probe on prepared cavity, to which will be assigned the following scores: (A) adequate partial removal of carious lesions, (B) excessive partial removal of dental tissue and (C) insufficient partial removal of lesion. Microbiological analysis of the prepared cavity will be performed through evaluation of presence of Lactobacillus sp and Streptococcus mutans, obtained from zest of dentine. Prepared cavities will be restore employing the system Adpter Single Bond 2/ Filtek Supreme(3M). Clinical evaluation of restorations will be performed by two calibrated and experienced professionals, using the scores: ALPHA, BRAVO, CHARLIE, DELTA, along with photographs of restored teeth, obtained by the same professional, 7 days after the restoration, after final polishing and one year after completion of treatment. The obtained data will be analyzed to choose the appropriate statistical method. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

RENATA SIQUEIRA SCATOLIN; VIVIAN COLUCCI; TAÍSA PENAZZO LEPRI; ADÍLIS KALINA DE ALEXANDRIA; LUCIANNE COPLE MAIA; RODRIGO GALO; MARIA CRISTINA BORSATTO; SILMARA APARECIDA MILORI CORONA. Non-contact profilometry of eroded and abraded enamel irradiated with an Er:YAG laser. Journal of Applied Oral Science, v. 26, 2018-05-07. (11/00272-5, 11/23252-0)

VALERIO, RODRIGO ALEXANDRE; BORSATTO, MARIA CRISTINA; SERRA, MONICA CAMPOS; FERNANDES POLIZELI, SILVANA APARECIDA; NEMEZIO, MARIANA ALENCAR; GALO, RODRIGO; AIRES, CAROLINA PATRICIA; DOS SANTOS, ANA CAROLINA; MILORI CORONA, SILMARA APARECIDA. Caries removal in deciduous teeth using an Er:YAG laser: a randomized split-mouth clinical trial. CLINICAL ORAL INVESTIGATIONS, v. 20, n. 1, p. 65-73, JAN 2016. (11/00272-5)