Primary teeth with periradicular lesions with or without physiologic root resorption were treated successfully by the LSTR endodontic therapy.

Sterilization of bacteria in root canal system is one of the prominent problems. Some bacteria could remain in root canal even after using conventional medicaments. Evidences suggested that Enterococcus faecalis (E. faecalis) caused substantial root canal infections. So, elimination of such organism is important to achieve treatment success. Research hypothesis: Sterilization of root canal with Lesion Sterilization and Tissue Repair (LSTR)-3mix MP Therapy is thought to be more effective against E. faecalis comparing to single antibiotic. Methods: In-vitro cross-sectional with interventional type of study to observe the zone of inhibitions by E. faecalis culture using LSTR- 3mix (metronidazole, ciprofloxacin and minocycline) and calcium hydroxide (control). Results: The results strongly recommended that LSTR-3mix sufficiently able to inhibit E. faecalis growth. DOI: http://dx.doi.org/10.3329/cdcj.v9i2.12311 City Dental College J. Volume-9, Number-2, July-2012

<p>The purpose of the present study was to compare the efficacy of nanofilled and microfilled resin- modified glass ionomer as pits and fissure sealants in permanent molar teeth. Ninety six teeth having fissure at the occlusal surface were randomly divided into two groups: Group I: Treated by nanofilled resin-modified glass ionomer sealant and Group II: Treated by microfilled resin- modified glass ionomer sealants. Clinical assessment was performed by modified Ryge´s criteria by means of retention, color match, marginal adaptation at 3, 6, and 12 months follow-up visit. Chi-square test was used for testing differences between the two groups; a value of p&lt;0.05 was considered as statistically significant. The results revealed that at 12 months observation period, nanofilled resin-modified glass ionomer sealant showed better retention, color stability and marginal adaptation than that of microfilled resin-modified glass ionomer sealants. Furthermore, the differences between two groups in respect to marginal adaptation and color match were statistically significant (p&lt;0.05). It can be concluded that nanofilled resin-modified glass ionomer sealant could be a better alternative to microfilled resin- modified glass ionomer sealant.</p>

Abstract:The present case describes the clinical & radiographic outcome of a Portland Cernent pulpotomy. The 5 years old girl presenting extensive carious exposure in her mandibular left 2nd deciduous molar and was suffering pain in her left lower jaw only on exposure to cold for last 2 days. She was ultimately diagnosed clinic-radio-graphically as a case of irresersible pulpitis. Coronal pulpotomy procedure was carried out in the responsible tooth and Portland cement (PC) was applied as a medicament after pulpotomy. At the 3 & 6-months follow-up appointments, treated tooth was asymptomatic clinically and radiographic examinations revealed no sign of periradicular pathosis in the pulpotomized teeth. Additionally, the formation of a dentin bridge immediately below the PC in the treated tooth was confirmed by RVG and CBCT.

Background: LSTR therapy is considered as one of the most widely accepted clinical procedure for the treatment of permanent tooth with irreversible pulpitis with minimum destruction of tooth tissue Objective: To evaluate the clinical and radiographic findings of permanent tooth with irreversible pulpitis by LSTR 3Mix MP therapy and compare with conventional root canal therapy. Methods: According to inclusion and exclusion criteria, a total of 40 teeth were enrolled in this study, out of which 20 teeth treated with LSTR 3Mix MP Therapy, (Group-I) and the remaining 20 teeth treated with conventional root canal therapy (Group-2). Clinical and radiological Follow up examinations were performed at 3, 6- and 12-months interval to investigate the incidence of postoperative pain, tenderness to percussion, swelling and periodical radiolucency, collected date was analyzed by using Statistical package for Social Science (SPSS) version 17. Statistical analysis was performed by Chisquare test to assess the difference between the clinical outcome of Group 1 and 2; a value of P<0.05 was considered as statistically significant. Results: At 3 months observation period, LSTR and Conventional root canal therapy showed 100% success rate in treating teeth with irreversible pulpits; neither pain nor any tenderness on percussion or post-operative swelling was observed. Radiographic examination also revealed no sign of radiolucent area. At 6 and 12 months following the completion of the treatment, except in one case in each observation period, there results were similar to that of 3 months. One LSTR (5%) and one conventional (5%) therapy reported pain, tenderness on percussion and swelling with peripical lesion. There were no statistical differences between the two groups (p>0.05). Conclusions: It can be concluded that LSTR 3 Mix MP Therapy proved to be effective in treating teeth with irreversible pulpitis; with similar clinical and radiological outcome to conventional root canal treatment within one-year observation period. Update Dent. Coll. j: 2019; 9 (2): 20-26