PubMed Health⌕ Search

Biomedical subjects

E J Mertz-Fairhurst

Publications and source records attributed to E J Mertz-Fairhurst.

At least 19 recordsLinked to original sources
PubMed1998

Ultraconservative and cariostatic sealed restorations: results at year 10.

Changes in restorative techniques and the development of newer restorative materials have allowed for the use of more conservative cavity preparations. This 10-year study evaluated bonded and sealed composite restorations placed directly over frank cavitated lesions extending into dentin vs. sealed conservative amalgam restorations and conventional unsealed amalgam restorations. The results indicate that both types of sealed restorations exhibited superior clinical performance and longevity compared with unsealed amalgam restorations. Also, the bonded and sealed composite restorations placed over the frank cavitated lesions arrested the clinical progress of these lesions for 10 years.

Adolescent↗
PubMed1992

Cariostatic and ultraconservative sealed restorations: six-year results.

The objective of this clinical study was to determine the ability of an ultraconservative, sealed composite resin restoration, without a traditional cavity preparation and without the removal of the carious lesion, to arrest Class I caries. Tooth preparation was limited to placing a bevel in the enamel. These restorations were compared, over 6 years, with (1) ultraconservative, localized, sealed amalgam restorations with no extension for prevention and (2) traditional, unsealed amalgam restorations with the usual extension for prevention outline form. Caries was arrested by the ultraconservative, sealed composite resin restorations for 6 years. Complete sealant retention on the sealed amalgam restorations was somewhat lower than that on the sealed composite resin restorations; conversely, partial sealant retention was higher for the sealed amalgam group. The marginal integrity of the sealed amalgam restorations was significantly superior to that of the unsealed amalgam restorations. The sealant also protected Class I posterior composite resin restorations against wear.

Adolescent↗
PubMed1992

Sealed restorations: 5-year results.

This clinical study determined the feasibility of a sealed resin composite restoration to arrest dental caries using a minimal tooth preparation: a bevel in enamel only without removal of the carious lesion. These ultra-conservative sealed composite restorations placed over caries (CompS/C) were compared with ultra-conservative sealed amalgam restorations (AGS) that had no "extension for prevention". The CompS/C restorations were also compared with the traditional (unsealed) amalgam restorations (AGU) with the "extension for prevention" outline form. Caries progress, as determined by standardized radiographs, revealed that after 5 years caries remained arrested under the CompS/C restorations; the marginal integrity was similar for the CompS/C and the AGS groups, and exhibited highly significant superiority to the AGU restorations (Chi square, P less than = 0.00004). Complete sealant retention over the amalgam restorations (AGS group) was less than over the composite restorations (CompS/C), and conversely, partial sealant retention was higher for the AGS group. Sealants also appeared to protect the posterior composite restorations against wear.

Adolescent↗
PubMed1991

Ultraconservative sealed restorations: three-year results.

The overall objective of this clinical study was to determine the feasibility of using a sealed composite restoration to arrest caries without the removal of the carious lesion and without the traditional cavity preparation. The minimal tooth preparation (a bevel in enamel) usually did not require any anesthetic injection and conserved tooth structure. These ultraconservative sealed composite restorations placed over caries (CompS/C) have been compared with ultraconservative sealed amalgam restorations (AGS) and with the traditional outline form (unsealed) amalgam restorations (AGU). This clinical study has shown that: (1) caries can be arrested by the CompS/C restoration for a period of three years; (2) the marginal integrity of the AGS restorations showed a definite trend toward improvement as compared to the AGU restorations; and (3) complete sealant retention over posterior restorations was similar in both the CompS/C and the AGS groups during the first two years; however, at Year 3 complete sealant retention was 16 percent higher in the CompS/C than in the AGS group.

Adolescent↗
PubMed1991

Sealed restorations: 4-year results.

The overall objective of this clinical study was to determine the feasibility of using a sealed composite restoration to arrest caries. This objective was to be achieved using minimal tooth preparation for Class I lesions, without the traditional Class I cavity preparation and without the removal of the carious lesion. The minimal tooth preparation consisted of no [corrected] removal of the carious lesion, bevel in enamel only, and usually not requiring any anesthetic injection. These ultra-conservative sealed composite restorations placed over caries (CompS/C) were compared with ultra-conservative sealed amalgam restorations (AGS) and with the traditional (unsealed) amalgam restorations (AGU). This study showed that: 1) caries is arrested under the CompS/C restoration for a period of 4 years; 2) sealant retention is similar in both the CompS/C and the AGS groups; 3) the marginal integrity of the AGS restorations is markedly superior to that of the AGU restorations; and 4) sealant appears to prevent wear of posterior composite restorations.

Adolescent↗
PubMed1987

Clinical performance of sealed composite restorations placed over caries compared with sealed and unsealed amalgam restorations.

The 2-year clinical evaluations of paired occlusal restorations are presented. Each study participant received a sealed composite restoration placed over a carious lesion and either a traditional outline-form (unsealed) amalgam or an ultraconservative sealed amalgam restoration. Caries was removed before placement of both types of amalgam restorations. No important clinical differences developed among the three groups of restorations.

Adolescent↗
PubMed1986

Arresting caries by sealants: results of a clinical study.

In each of 14 patients, one bilateral occlusal carious lesion was sealed and the other lesion was left open as a control. The control lesions showed patterns of sudden increases in cavity depth, as well as evidence of being active bacteriologically; whereas, with one exception, the sealed lesions were inactive bacteriologically. The residual carious material in the sealed lesions suggested a complete cessation of the carious process. No clinical or radiologic signs were seen to suggest that the health of the sealed tooth had been compromised.

Adolescent↗
PubMed1984

A comparative clinical study of two pit and fissure sealants: 7-year results in Augusta, GA.

This 7-year evaluation of the Augusta study reinforces earlier conclusions regarding the long-term retention of sealants and their efficacy in caries protection. Although more time will be required to answer all the questions about sealants, sufficient data are now available to document their efficacy as caries-preventive agents. It is imperative that the dental profession provide this safe and effective preventive technique for the public so that dental disease can either be reduced or further postponed.

Bisphenol A-Glycidyl Methacrylate↗
PubMed1981

A comparative study of two pit and fissure sealants: results after 4 1/2 years in Augusta, Ga.

A total of 220 children were examined at 4 1/2 years (54 months) after a single application of a pit and fissure sealant. In 110 children, 177 permanent first molars were treated with Nuva-Seal; and in 110 children, 168 permanent first molars were treated with Delton. Nuva-Seal was completely retained on 35% of all paired permanent molars, partially retained on 21%, and completely lost on 44% of the study teeth. Delton was completely retained on 72% of all paired permanent molars, partially retained on 14%, and completely lost on 14% of the study teeth. These data indicate that occlusal caries protection on permanent molars is assured if the sealant is completely retained on the tooth. Delton was four times more effective in providing protection against pit and fissure caries than Nuva-Seal.

Acrylates↗
PubMed1979

Clinical progress of sealed and unsealed caries. Part II: Standardized radiographs and clinical observations.

At the present time, a trend has been shown that the progress of sealed caries is markedly slowed by sealant therapy as compared to open lesions. This fact has been substantiated by depth measurements, viable bacterial counts, standardized radiographs, and clinical observations. The radiographic and clinical observations agreed with the previously reported two parameters in confirming that (1) sealed cavities showed little or no change in depth and (2) open lesions showed a significant increase in depth as compared to sealed lesions.

Child↗