Effects and Effectiveness of Cavity Disinfectants in Operative Dentistry: A Literature Review

Abstract

The degree of success in the elimination of bacteria during cavity preparation and prior to the insertion of a restoration may increase the longevity of the restoration and therefore the success of the restorative procedure. The complete eradication of bacteria in a caries-affected tooth, during cavity preparation, is considered a difficult clinical task. In addition to weakening the tooth structure, attempts to excavate extensive carious tissue completely, by only mechanical procedures, may affect the vitality of the pulp. Therefore, disinfection of the cavity preparation after caries excavation can aid in the elimination of bacterial remnants that can be responsible for recurrent caries, postoperative sensitivity, and failure of the restoration. However, the effects of disinfectants on the restorative treatment have been a major concern for dental clinicians and researchers. This review aims to explore existing literature and provide information about different materials and techniques that have been used for disinfecting cavity preparations and their effects and effectiveness in operative dentistry and, therefore, helps dental practitioners with clini cal decision to use cavity disinfectants during restorative procedures. Antimicrobial effectiveness and effects on the pulp and dental restorations, in addition to possible side effects, were all reviewed in this paper.

Effect of pretreatment with different MMP inhibitors on shear bond strength of composite to primary teeth dentin after six months of aging

“…The preserved bond interface associated with the use of CHX can be explained by the inhibitory ability of CHX on the matrix metalloproteinases (MMPs) found in etched dentin [7] like the results of the study by…”

“…Moreover, etch-and-rinse adhesives might lead to the formation of incompletely infiltrated zones and denuded collagen fibrils along the bottom of the hybrid layer as a result of the decreasing gradient of resin monomer diffusion within the acid-etched dentin [6]. Dentin matrix metalloproteinases can devastate these unprotected collagen fibrils [7]. Thus, from a clinical standpoint, MMP inhibitors, such as chlorhexidine (CHX) can play an imperative role in the longevity of the resin bond to dentin [3].…”

Evaluation of temperature rise and efficacy of cavity disinfection with diode laser: An in vivo study

“…In deep carious lesions, complete elimination of carious tissue by only mechanical procedure leads to weakening of the tooth structure and may also affect the vitality of the pulp. [ 1 ]…”

“…[ 2 3 ] Therefore, disinfection of the cavity preparation after caries excavation can aid in the elimination of bacterial remnants that can be responsible for recurrent caries, postoperative sensitivity, and failure of the restoration. [ 1 ] Various adjuncts have been used over the past years for cavity disinfection. Few of these are antimicrobial photodynamic therapy, propolis, calcium hydroxide, Acidulated phosphate fluoride (APF) gel, 2% chlorhexidine, etc., which can be valuable clinically before definitive restoration.…”

Recent Methods for Diagnosis of Dental Caries in Dentistry

“…Also, the images obtained by this method can be saved and viewed later, the properties of the lesions can be examined by increasing the contrast of the image. This method is useful in detecting changes like fractures and fluorosis (18). Xeroradiography This technique uses the xeroradiographic copying process for recording images produced by X-rays (6).…”