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Fulltext An ex-vivo comparative study of root-end marginal adaptation using grey mineral trioxide aggregate, white mineral trioxide aggregate, and Portland cement under scanning electron microscopy

Baranwal AK, Paul ML, Mazumdar D, Adhikari HD, Vyavahare NK, Jhajharia K

J Conserv Dent, 2015 Sep-Oct;18(5):399-404.
PMID: 26430305 DOI: 10.4103/0972-0707.164054

Where nonsurgical endodontic intervention is not possible, or it will not solve the problem, surgical endodontic treatment must be considered. A major cause of surgical endodontic failures is an inadequate apical seal, so the use of the suitable substance as root-end filling material that prevents egress of potential contaminants into periapical tissue is very critical.

Matched MeSH terms: Periapical Tissue
Apical extrusion of debris in four different endodontic instrumentation systems: A meta-analysis

Western JS, Dicksit DD

J Conserv Dent, 2017 Jan-Feb;20(1):30-36.
PMID: 28761250 DOI: 10.4103/0972-0707.209066

BACKGROUND: All endodontic instrumentation systems tested so far, promote apical extrusion of debris, which is one of the main causes of postoperative pain, flare ups, and delayed healing.

OBJECTIVES: Of this meta-analysis was to collect and analyze in vitro studies quantifying apically extruded debris while using Hand ProTaper (manual), ProTaper Universal (rotary), Wave One (reciprocating), and self-adjusting file (SAF; vibratory) endodontic instrumentation systems and to determine methods which produced lesser extrusion of debris apically.

METHODOLOGY: An extensive electronic database search was done in PubMed, Scopus, Cochrane, LILACS, and Google Scholar from inception until February 2016 using the key terms "Apical Debris Extrusion, extruded material, and manual/rotary/reciprocating/SAF systems." A systematic search strategy was followed to extract 12 potential articles from a total of 1352 articles. The overall effect size was calculated from the raw mean difference of weight of apically extruded debris.

RESULTS: Statistically significant difference was seen in the following comparisons: SAF < Wave One, SAF < Rotary ProTaper.

CONCLUSIONS: Apical extrusion of debris was invariably present in all the instrumentation systems analyzed. SAF system seemed to be periapical tissue friendly as it caused reduced apical extrusion compared to Rotary ProTaper and Wave One.

Matched MeSH terms: Periapical Tissue
Fulltext Endodontic treatment of a maxillary central incisor with arrested root development: a case report

Annuar, W.A., Rahman, R.A., Bahadun, J.

Ann Dent, 2008;15(2):82-88.
MyJurnal

Arrested root development of permanent te~th can occur due to local factors such as infection and trauma or general factors such as radiation and odontodysplasia. This case report presents a 11 tooth with arrested root development requiring endodontic treatment. Following obturation with MTA, a minor surgical procedure was performed to remove periapical pathologic tissue. The tooth had remained asymptomatic at the 6-month review and the case will be followed-up for at least 2 years to ensure complete healing.

Matched MeSH terms: Periapical Tissue
Fulltext Comparative Evaluation of pH and In Vitro Cytotoxicity of Zinc Oxide-Ozonated Eugenol and Conventional Zinc Oxide Eugenol as Endodontic Sealers

Ravivarman C, Jeyasenthil A, Ajay R, Nilofernisha N, Karthikeyan R, Rajkumar D

J Pharm Bioallied Sci, 2020 Aug;12(Suppl 1):S73-S77.
PMID: 33149434 DOI: 10.4103/jpbs.JPBS_21_20

Background: Eugenol released from zinc oxide eugenol (ZOE)-based sealants may cause irritation to the periapical tissues and has cytotoxic potential. Ozone therapy has numerous clinical applications with humans because of its bactericidal action, detoxifying effect, stimulation of angiogenesis, and wound-healing capacity. Therefore ozone can be incorporated in ZOE sealer to exploit these properties.
Materials and Methods: Eugenol was ozonated using ozonator machine and the samples were divided into two groups: Group I: zinc oxide eugenol (n = 10) and Group II: zinc oxide-ozonated eugenol (OZOE; n = 10). The pH of the fresh sealer samples and the set samples was measured using calibrated pH meter after predetermined time intervals. Cytotoxicity of the set sealer was evaluated on mouse L929 fibroblasts using cellular metabolic assay.
Results: pH of the samples in Group II was higher when compared to Group I. Group II showed higher cell viability than the Group I.
Conclusion: OZOE sealers can be used as an alternative to the conventional ZOE sealers.

Matched MeSH terms: Periapical Tissue
Fulltext A comparative analysis of microleakage of three root end filling materials - an in vitro study

Saini, D., Nadig, G., Saini, R.

Archives of Orofacial Sciences, 2008;3(2):43-47.
MyJurnal

The main objective of a root end filling material is to provide an apical seal that prevents the movement of bacteria and the diffusion of bacterial products from the root canal system into periapical tissues. The aim of this study was to compare the microleakage of three root end filling materials Mineral trioxide aggregate (MTA), Glass ionomer cement (GIC) and Silver GIC (Miracle Mix) using dye penetration technique under stereomicroscope. Forty-five extracted human maxillary central incisors were instrumented and obturated with gutta percha using lateral compaction technique. Following this, the teeth were stored in saline. After one week, teeth were apically resected at an angle of 90ï° to the long axis of the root and root end cavities were prepared. The teeth were divided into three groups of fifteen specimens each and were filled with Group I -MTA, Group II - GIC and Group III - Miracle Mix. The samples were coated with varnish and after drying, they were immersed in 1% methylene blue dye for 72 hours. The teeth were then rinsed, sectioned longitudinally and observed under stereomicroscope. The depth of dye penetration was measured in millimeters. Microleakage was found to be significantly less in MTA (0.83 mm) when compared to GIC (1.32 mm) (p < 0.001) and with Miracle Mix (1.39 mm) (p < 0.001) No significant difference was found when microleakage in Miracle Mix was compared to that of GIC (p = 0.752). Thus we concluded that MTA is a better material as root end filling material to prevent microleakage, in comparison to GIC and Miracle Mix.

Matched MeSH terms: Periapical Tissue