ABSTRACT
Introduction: Prolotherapy is a minimally invasive techniqueused in the treatment of temporomandibular disorders.Prolotherapy agent induces an inflammatory process in thejoint, stimulates fibroblast proliferation, hence facilitatesthe healing process and strengthens the joint and associatedligaments and tendons. The main aim of this article wasto study the effect of 25% dextrose prolotherapy ontemporomandibular joint pain, clicking and maximum mouthopening by using different injection sites.Material and methods: Sixty patients with establisheddiagnosis of unilateral disc displacement with reduction whocomplained of unilateral symptoms (pain and clicking) wereincluded in the study. They were randomly allocated to threegroups (Group A, Group B and Group C) of 20 patients each.Group A patients received intra-articular injections into thesuperior joint space, Group B patients received injections intothe inferior joint space where as Group C patients were giveninjections into the retrodiscal tissues. Each group receivedsubsequent injections at first, second and third weeks at therespective sites. Pain, clicking and maximum mouth opening(MMO) was recorded pre-operatively, post-operatively at 3weeks and 2 months.Results: Group B and Group C patients showed a significantdecrease in the pain score at 3 weeks and 2 months postoperatively while as no significant pain relief was observed inGroup A. Maximum mouth opening improved significantly inGroup B and Group C patients at 3 weeks and 2 months andwas highest in Group C. Reduction in clicking was best seenin Group C.Conclusion: Prolotherapy is more effective when injectionsite is selected as per the type of symptoms of the patientswith temporomandibular disorders.
ABSTRACT
Introduction: Surgical endodontic treatment comprises ofthorough debridement of pathological periradicular tissue,root end resection followed by a Class I retrograde cavitypreparation and insertion of root end filling material into theprepared cavity. The aim of this study was to evaluate the pushout bond strength of Biodentine, Mineral Trioxide Aggregate(MTA) and Bone Cement used in the retro cavities, preparedwith ultrasonic retro tips.Material and methods: 60 human extracted single rootedteeth were selected and sectioned with a diamond disc (Horico,Germany) to standardize the root length of 15mm. The rootswere instrumented with rotary ProTaper Universal (DentsplyMaillefer) system till size F2. The root canals were obturatedusing gutta percha (Dentsply, Maillefer) and AH Plus sealer(Dentsply, Germany). 3mm of root end resection wasperformed with high speed hand piece under water coolant.3mm deep retro cavities were prepared with ultrasonic stainlesssteel retro tip (Woodpecker). All the specimens were dividedinto 3 groups (n=20) Group I: MTA (ProRoot, Tulsa Dental,USA), Group II Biodentine (Septodont, France), Group IIIBone Cement (Depuy, Johnsons and Johnsons). Each materialwas mixed according to the manufacturers instructions andfilled into the retro cavities. The specimens were sectionedperpendicularly to obtain 1mm thick slices from the apicalportion and subjected to push out bond strength testing underUniversal Testing Machine (Instron).Results: Biodentine showed more push out bond strength thanMTA and Bone Cement. There was no significant differencebetween MTA and Bone Cement groups.Conclusion: Bone Cement can be considered as one of thepotential retro filling material.
ABSTRACT
Introduction: Biomechanical preparation of root canals isone of the main steps in achieving endodontic success dueto enabling bacterial elimination, removal of debris, andfacilitating obturation. The aim of this study was to comparethe incidence of dentinal cracks observed in the canal wallafter canal instrumentation with 3 single-file systems and theProTaper system (Dentsply Maillefer, Switzerland).Material and Methods: Eighty mandibular premolars withsingle root canal were selected. Teeth were decoronated andmounted in resin blocks with simulated periodontal ligaments.They were divided into 4 experimental groups (n = 20); theninstrumented to the full working length with the ProTaper,OneShape (MicroMega, Besancon, France), Reciproc (VDW,Munich, Germany), and WaveOne Gold (Dentsply Malliefer)was performed. The roots were sectioned perpendicular to thelong axis at 3, 6, and 9 mm from the apex and were observedunder a stereomicroscope. The presence of cracks was noted.The chi-square test was performed to compare the appearanceof cracked roots between the experimental groups.Results: Cracks found after canal instrumentation with theProTaper, OneShape, and Reciproc and WaveOne Goldfiles, were 46.6%, 23.3%, 13.6%, 11.6% respectively. Thedifference between the experimental groups was statisticallysignificant (P < .001).Conclusion: Nickel-titanium instruments cause cracks in rootsurface or in the canal wall; Reciproc and WaveOne Gold filescaused less cracks than the ProTaper and OneShape files.
ABSTRACT
Background: The main purpose of this study was to determine the prevalence of odontogenic cysts in Kashmiri population. Methods:The data on odontogenic cysts (OCs) treated in the department of Oral and Maxillofacial Surgery Government Dental College Srinagar from January 2011 to December 2016 was collected retrospectively. The information regarding patient’s age, sex, location of the cyst and the type of the odontogenic cyst was recorded and analysis was done using descriptive statistics. Results: A total of 152 OCs were identified out of which 87 were male and 65 female with male to female ratio of 1.3:1. The OCs were seen to predominate in the second, third and fourth decades of life, the most common anatomic location being the mandibular posterior region (40.8%). Radicular cyst dominated among the OCs (50.6 %) followed by dentigerous cyst (23%), odontogenic keratocyst (10.5%), residual cyst (8.6 %), lateral periodontal cyst (5.3 %) and paradental cyst (1.9 %). Radicular cysts most frequently involved the maxillary anterior region (33.8%) while as dentigerous cysts and odontogenic keratocysts were more common in the man-dibular posterior region (54.3% and 56.3% respectively). Conclusion: Radicular cyst and dentigerous cyst are the most prevalent odontogenic cysts in Kashmiri population; etiology being the dental decay (pulpal necrosis) and impacted teeth. In order to decrease the prevalence of radicular and dentigerous cysts, preventive measures need to be taken to diminish dental decay and programs of prophylactic extractions of impacted teeth need to be established