Influence of gaps in adhesive restorations in the development of secondary caries lesions: An in situ evaluation

Juliana Sarmento Barata, Luciano Casagrande, Carla Moreira Pitoni, Fernando Borba De Araujo, Franklin Garcia-Godoy, Sonia Groismann

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Purpose: To investigate in situ the influence of gaps in the development of secondary caries lesion in adhesive restorations. Methods: 10 volunteers utilized intra-oral appliances, containing three human dental blocks (enamel and dentin), representing the three different groups (two restored, one sound): (1) restored with resin composite using the total acid etch adhesive technique (37% H3PO4 + Single Bond + Z250); (2) restored with resin composite but without acid etching (Single Bond + Z250); (3) and sound blocks (control group). The dental blocks (n=30) were randomly positioned inside the intra-oral appliances, and covered by a porous tissue (gabardine base) to induce a cariogenic biofilm. The volunteers used the appliances 24 hours daily for a 28-day period, removing just during meals and oral hygiene. Eight times a day, a 20% sucrose solution was dripped onto the blocks. Five minutes later, the appliance was washed with distilled water and replaced in the oral environment. After the experimental period, the dental blocks were removed from the appliance and examined by visual examination to detect the presence or the absence of an active carious lesion (kappa= 0.89). Posteriorly, they were prepared for the polarized light microscopy examination, which was performed to describe enamel surface characteristics on the restored and unrestored blocks with active caries lesion (kappa= 1). Results: The visual examination demonstrated that almost all (29/30) of the blocks showed non-cavitated active caries lesion on the enamel surface. The microscopic evaluation showed non-cavitated caries lesions on enamel surfaces for all groups. In the restored blocks (with and without the total etch technique), the demineralization was first identified as an outer lesion that follows the enamel prism directions, and in some cases, reached the cavity walls. The results showed that caries lesion development adjacent to the restoration was determined by the cariogenic challenge of the oral environment, instead of the restoration adhesive quality, and the wall lesion was determined by the prism orientation, regardless of the presence of gaps.

Original languageEnglish (US)
Pages (from-to)244-248
Number of pages5
JournalAmerican journal of dentistry
Volume25
Issue number4
StatePublished - Aug 1 2012

Fingerprint

Dental Enamel
Adhesives
Composite Resins
Volunteers
Tooth
Polarization Microscopy
Acids
Oral Hygiene
Dentin
Biofilms
Meals
Sucrose
Control Groups
Water
single bond

All Science Journal Classification (ASJC) codes

  • Dentistry(all)

Cite this

Barata, J. S., Casagrande, L., Pitoni, C. M., De Araujo, F. B., Garcia-Godoy, F., & Groismann, S. (2012). Influence of gaps in adhesive restorations in the development of secondary caries lesions: An in situ evaluation. American journal of dentistry, 25(4), 244-248.

Influence of gaps in adhesive restorations in the development of secondary caries lesions : An in situ evaluation. / Barata, Juliana Sarmento; Casagrande, Luciano; Pitoni, Carla Moreira; De Araujo, Fernando Borba; Garcia-Godoy, Franklin; Groismann, Sonia.

In: American journal of dentistry, Vol. 25, No. 4, 01.08.2012, p. 244-248.

Research output: Contribution to journalArticle

Barata, JS, Casagrande, L, Pitoni, CM, De Araujo, FB, Garcia-Godoy, F & Groismann, S 2012, 'Influence of gaps in adhesive restorations in the development of secondary caries lesions: An in situ evaluation', American journal of dentistry, vol. 25, no. 4, pp. 244-248.
Barata, Juliana Sarmento ; Casagrande, Luciano ; Pitoni, Carla Moreira ; De Araujo, Fernando Borba ; Garcia-Godoy, Franklin ; Groismann, Sonia. / Influence of gaps in adhesive restorations in the development of secondary caries lesions : An in situ evaluation. In: American journal of dentistry. 2012 ; Vol. 25, No. 4. pp. 244-248.
@article{f877effda7cc408d947708417e10b3d7,
title = "Influence of gaps in adhesive restorations in the development of secondary caries lesions: An in situ evaluation",
abstract = "Purpose: To investigate in situ the influence of gaps in the development of secondary caries lesion in adhesive restorations. Methods: 10 volunteers utilized intra-oral appliances, containing three human dental blocks (enamel and dentin), representing the three different groups (two restored, one sound): (1) restored with resin composite using the total acid etch adhesive technique (37{\%} H3PO4 + Single Bond + Z250); (2) restored with resin composite but without acid etching (Single Bond + Z250); (3) and sound blocks (control group). The dental blocks (n=30) were randomly positioned inside the intra-oral appliances, and covered by a porous tissue (gabardine base) to induce a cariogenic biofilm. The volunteers used the appliances 24 hours daily for a 28-day period, removing just during meals and oral hygiene. Eight times a day, a 20{\%} sucrose solution was dripped onto the blocks. Five minutes later, the appliance was washed with distilled water and replaced in the oral environment. After the experimental period, the dental blocks were removed from the appliance and examined by visual examination to detect the presence or the absence of an active carious lesion (kappa= 0.89). Posteriorly, they were prepared for the polarized light microscopy examination, which was performed to describe enamel surface characteristics on the restored and unrestored blocks with active caries lesion (kappa= 1). Results: The visual examination demonstrated that almost all (29/30) of the blocks showed non-cavitated active caries lesion on the enamel surface. The microscopic evaluation showed non-cavitated caries lesions on enamel surfaces for all groups. In the restored blocks (with and without the total etch technique), the demineralization was first identified as an outer lesion that follows the enamel prism directions, and in some cases, reached the cavity walls. The results showed that caries lesion development adjacent to the restoration was determined by the cariogenic challenge of the oral environment, instead of the restoration adhesive quality, and the wall lesion was determined by the prism orientation, regardless of the presence of gaps.",
author = "Barata, {Juliana Sarmento} and Luciano Casagrande and Pitoni, {Carla Moreira} and {De Araujo}, {Fernando Borba} and Franklin Garcia-Godoy and Sonia Groismann",
year = "2012",
month = "8",
day = "1",
language = "English (US)",
volume = "25",
pages = "244--248",
journal = "American Journal of Dentistry",
issn = "0894-8275",
publisher = "Mosher and Linder, Inc",
number = "4",

}

TY - JOUR

T1 - Influence of gaps in adhesive restorations in the development of secondary caries lesions

T2 - An in situ evaluation

AU - Barata, Juliana Sarmento

AU - Casagrande, Luciano

AU - Pitoni, Carla Moreira

AU - De Araujo, Fernando Borba

AU - Garcia-Godoy, Franklin

AU - Groismann, Sonia

PY - 2012/8/1

Y1 - 2012/8/1

N2 - Purpose: To investigate in situ the influence of gaps in the development of secondary caries lesion in adhesive restorations. Methods: 10 volunteers utilized intra-oral appliances, containing three human dental blocks (enamel and dentin), representing the three different groups (two restored, one sound): (1) restored with resin composite using the total acid etch adhesive technique (37% H3PO4 + Single Bond + Z250); (2) restored with resin composite but without acid etching (Single Bond + Z250); (3) and sound blocks (control group). The dental blocks (n=30) were randomly positioned inside the intra-oral appliances, and covered by a porous tissue (gabardine base) to induce a cariogenic biofilm. The volunteers used the appliances 24 hours daily for a 28-day period, removing just during meals and oral hygiene. Eight times a day, a 20% sucrose solution was dripped onto the blocks. Five minutes later, the appliance was washed with distilled water and replaced in the oral environment. After the experimental period, the dental blocks were removed from the appliance and examined by visual examination to detect the presence or the absence of an active carious lesion (kappa= 0.89). Posteriorly, they were prepared for the polarized light microscopy examination, which was performed to describe enamel surface characteristics on the restored and unrestored blocks with active caries lesion (kappa= 1). Results: The visual examination demonstrated that almost all (29/30) of the blocks showed non-cavitated active caries lesion on the enamel surface. The microscopic evaluation showed non-cavitated caries lesions on enamel surfaces for all groups. In the restored blocks (with and without the total etch technique), the demineralization was first identified as an outer lesion that follows the enamel prism directions, and in some cases, reached the cavity walls. The results showed that caries lesion development adjacent to the restoration was determined by the cariogenic challenge of the oral environment, instead of the restoration adhesive quality, and the wall lesion was determined by the prism orientation, regardless of the presence of gaps.

AB - Purpose: To investigate in situ the influence of gaps in the development of secondary caries lesion in adhesive restorations. Methods: 10 volunteers utilized intra-oral appliances, containing three human dental blocks (enamel and dentin), representing the three different groups (two restored, one sound): (1) restored with resin composite using the total acid etch adhesive technique (37% H3PO4 + Single Bond + Z250); (2) restored with resin composite but without acid etching (Single Bond + Z250); (3) and sound blocks (control group). The dental blocks (n=30) were randomly positioned inside the intra-oral appliances, and covered by a porous tissue (gabardine base) to induce a cariogenic biofilm. The volunteers used the appliances 24 hours daily for a 28-day period, removing just during meals and oral hygiene. Eight times a day, a 20% sucrose solution was dripped onto the blocks. Five minutes later, the appliance was washed with distilled water and replaced in the oral environment. After the experimental period, the dental blocks were removed from the appliance and examined by visual examination to detect the presence or the absence of an active carious lesion (kappa= 0.89). Posteriorly, they were prepared for the polarized light microscopy examination, which was performed to describe enamel surface characteristics on the restored and unrestored blocks with active caries lesion (kappa= 1). Results: The visual examination demonstrated that almost all (29/30) of the blocks showed non-cavitated active caries lesion on the enamel surface. The microscopic evaluation showed non-cavitated caries lesions on enamel surfaces for all groups. In the restored blocks (with and without the total etch technique), the demineralization was first identified as an outer lesion that follows the enamel prism directions, and in some cases, reached the cavity walls. The results showed that caries lesion development adjacent to the restoration was determined by the cariogenic challenge of the oral environment, instead of the restoration adhesive quality, and the wall lesion was determined by the prism orientation, regardless of the presence of gaps.

UR - http://www.scopus.com/inward/record.url?scp=84866980893&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84866980893&partnerID=8YFLogxK

M3 - Article

C2 - 23082391

AN - SCOPUS:84866980893

VL - 25

SP - 244

EP - 248

JO - American Journal of Dentistry

JF - American Journal of Dentistry

SN - 0894-8275

IS - 4

ER -