An In Vitro Comparrison of Marginal Microleakage of ART and Conventional Glass Ionomer Restorations in Extracted Permanent Molars

Resident: Adam J. Bottrill
Date: 15DEC10
Region: Providence
Article title: An In Vitro Comparrison of Marginal Microleakage of ART (Alternative Restorative Treatment) and Conventional Glass Ionomer Restorations in Extracted Permanent Molars
Author(s): Wadenya, Rose BDS, MS, DMD et al
Journal: Pediatric Dentistry
Page #s: 303-307
Date: V29/No4 Jul/Aug 07
Major topic: Microleakage, ART, Margins, Glass Ionomer
Minor topic(s): NA
Type of Article: In vitro comparison
Main Purpose: The objective of this study was to compare the marginal leakage of cervical restorations made using Alternative Restorative Treatment (ART) and conventional glass ionomer restorations.

Key points in the article discussion:

I. General:

A. ART, formerly "Atraumatic Restorative Treatment", was introduced to assist in the need to prevent progression of dental caries in countries where conventional dental care was not available... Tanzania.

B. AAPD recognizes ART as useful and beneficial for:
1. Young pts
2. Uncooperative pts
3. Special needs pts
4. Situations where traditional cavity preparation and restoration is not possible

C. Glass ionomer cements:
1. Fl release
2. Low shrinkage
3. Pulpal biocompatability

II. Methods:

A. 16 permanent max and mand 1st molars extracted for perio reasons with cl V caries... ART used.

B. 29 noncarious extracted molars with cl V preparations using high speed handpiece.

C. All teeth restored with Glass Ionomer cement (GIC).

D. Thermally stressed for 300 cycles and stained with methylene blue... JUST LIKE A REAL
MOUTH!

E. Sectioned and evaluated for microleakage.

III. Results:

A. No significant difference between the ART and conventional GIC restorations.

IV. Conclustions:

A. ART with GIC shows comparable marginal leakage to conventionally restored teeth.

B. For conventional restorations, more leakage is higher at the dentinal margins when compared to the enamel margins.

Assessment of article: I believe I've already explained my "raised eyebrow" opinion of some in vitro studies... this is no different for me. ALSO... I would ave appreciated a primary tooth, occlusal surface ART study more than this PERMANENT tooth, Cl V study... huh?