[Microleakage: evaluation and treatment].

C F Cox

Home/Archive/PubMed

PubMed · 2096310

[Microleakage: evaluation and treatment].

C F Cox

View original source ↗Export metadata ↓

Abstract

Microleakage is a biological phenomenon with several implications. The affective component patient hyperalgesia (pain/hypersensitivity) of dentin which is a function of episodic hydrodynan (fluid) movement. The effective component is the disease process which signals the dentin-pulp complex to respond by disposition of sclerotic and/or reparative dentin. Vital dentin is an extension the pulp, presenting the first line of response to the consequences of microleakage. Recent data has demonstrated a correlation between pulp response and material biocompatibility when microleakage is prevented. Dentin-pulp healing is ensured when a proper hermetic seal is provided to control prevent microleakage. A critical evaluation of various clinical procedures is discussed.

Explore related subjects

Dental Leakage Dental Pulp Diseases Dental Restoration, Permanent Dentin Sensitivity Dentin, Secondary Evaluation Studies as Topic Humans English Abstract Journal Article

Keep this discovery

Explore connections, maps & timelines

BibTeX RIS

C F Cox. 1990. [Microleakage: evaluation and treatment].. https://pubmed.ncbi.nlm.nih.gov/2096310/

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related citations

PubMed2007

Enterococcus faecalis type strain leakage through root canals filled with Gutta-Percha/AH plus or Resilon/Epiphany.

The aim of this in vitro study was to compare leakage of Enterococcus faecalis ATCC 29212 through root canals of single-rooted extracted human mandibular premolars filled with either gutta-percha/AH Plus or Resilon/Epiphany using the continuous wave of condensation technique. Test and control teeth were suspended in an experimental bacterial leakage setup for 50 days. Kaplan-Meyer curves showed a tendency of the gutta-percha/AH Plus root fillings to prevent leakage better than Resilon/Epiphany counterparts. This tendency, however, was not statistically significant (log-rank test, p = 0.141). The estimated mean time for turbidity to occur in the broth below the suspended root was 35 days (SD = 5 days) in the gutta-percha/AH Plus and 33 days (SD = 4 days) in the Resilon/Epiphany group. It was concluded that within the limitations of this study, there was no apparent advantage of using Resilon/Epiphany over gutta-percha/AH Plus.

Dental Leakage↗

PubMed2006

Evaluation of microleakage of roots filled with different techniques with a computerized fluid filtration technique.

The aim of this study was to compare the apical leakage of roots filled with different materials using a computerized fluid filtration technique. There were 36 freshly extracted human maxillary central incisors selected. After preparation and irrigation, 3 experimental groups of 10 roots were constituted. Ten roots were filled with AH Plus and gutta-percha, 10 roots were filled with Sealapex and gutta-percha, and 10 roots were filled with Epiphany sealer and Resilon cone using a single cone technique. Three roots were used as a positive control and three roots were used as a negative control group. Evaluation of the apical leakages was performed with a computerized fluid filtration technique. According to the results, the difference between group 3 and 1 and group 3 and 2 was statistically significant (p<0.05). Although group 2 leaked the most, there was no significant difference between group 1 and 2.

Dental Leakage↗

PubMed2006

Leakage and sealer penetration in smear-free dentin after a final rinse with 95% ethanol.

Forty extracted maxillary incisors were decoronated, prepared in a crown-down fashion and randomly divided into two groups of 16 roots each. Remaining roots served as controls. Smear layer was removed with 17% EDTA followed by 5.25% NaOCl, the canals in group N were again rinsed with NaOCl before obturation with laterally compacted gutta-percha and Roth's 801 sealer. The roots in group E were rinsed with 95% ethyl alcohol instead of NaOCl for the final rinse. Leakage was determined using a fluid-flow model. Roots were cleared, split, and sealer penetration into the dentinal tubules was measured under light-microscopy. Group E demonstrated significantly greater sealer penetration (p = 0.002) and significantly less leakage (p = 0.040), than group N. Leakage could not be significantly correlated with sealer penetration (p = 0.725). Under the conditions of this study, we found that a final rinse with 95% ethyl alcohol increased sealer penetration and decreased leakage.

Dental Leakage↗