Streptococcus mutans counts in plaque adjacent to orthodontic brackets bonded with resin-modified glass ionomer cement or resin-based composite

Abstract

This study investigated the number of Streptococcus mutans CFU (colony forming units) in the saliva and plaque adjacent to orthodontic brackets bonded with a glass ionomer cement -GIC (Fuji Ortho) or a resin-based composite -RC (Concise). Twenty male and female patients, aged 12 to 20 years, participated in the study. Saliva was collected before and after placement of appliances. Plaque was collected from areas adjacent to brackets and saliva was again collected on the 15 th , 30 th , and 45 th day after placement. On the 30 th day, 0.4% stannous fluoride gel was applied for 4 minutes. No significant modification in the number of Streptococcus mutans CFU in saliva was observed after placement of the fixed orthodontic appliances. On the 15 th day, the percentage of Streptococcus mutans CFU in plaque was statistically lower in sites adjacent to GIC-bonded brackets (mean = 0.365) than in those adjacent to RCbonded brackets (mean = 0.935). No evidence was found of a contribution of GIC to the reduction of CFU in plaque after the 15 th day. Topical application of stannous fluoride gel on the 30 th day reduced the number of CFU in saliva, but not in plaque. This study suggests that the antimicrobial activity of GIC occurs only in the initial phase and is not responsible for a long-term anticariogenic property.

Prevention and treatment of white spot lesions in orthodontic patients

“…These products contain fluorides and/or casein phosphopeptide-amorphous calcium phosphate, and there is evidence with varying degrees of success in the dental literature. [426289394] Denis et al . advocated these measures for score of 0 and 1 of these lesions based on the ICDAS classification.…”

White Spot Lesions: Prevention and Management During the Orthodontic Treatment

“…There are several professionally and home applied products in different forms: solutions, varnishes, cream pastes and chewing gums for topical remineralization treatment. They all contain fluorides and/or casein phosphopeptide-amorphous calcium phosphate, with evidence for varying degrees of success to be found in the dental literature [44]. Remineralization procedures require following strict oral hygiene measures, repeated multiple applications, a treatment plan that could take a long period of time and first of all, the compliance of a motivated patient.…”

Synthesis and characterization of dimethacrylates containing quaternary ammonium functionalities for dental applications

“…Biofilm growth is especially problematic when restorative composites interfacially debond from tooth structure to create a gap prone to the development of secondary (recurrent) caries. When a conventional bonding agent is used, as in the case of orthodontic brackets, biofilm growth at the tooth-adhesive junction can lead to rapid demineralization of the tooth [3]. …”