Introduction: Knowing the anatomical complexity of the root canal system along with its variations, especially regarding the number of roots, conducts and curvatures, facilitates understanding of root canal location and negotiation. There might be C-shaped canals resembling a fissure. The number of these canals might range from one to three. Objective: To report a clinical case of endodontic re...

AIM To present a unique case of mandibular first and second premolars with two roots and two root canals with the aid of spiral computed tomography (SCT). BACKGROUND Confirmation of morphology of mandibular first and second premolars with the aid of SCT. CASE DESCRIPTION Mandibular premolars usually have a single root and a single canal. The occurrence of two roots with two separate root ca...

INTRODUCTION Resorption of the root of the maxillary incisors during ectopic eruption of the maxillary canines is not an uncommon phenomenon, and must be considered in all patients with seriously diverging eruption of the maxillary canines. CASE PRESENTATION We report on the diagnosis and treatment of a 10-year-old Chinese boy with severe crowding and risk of root resorptions caused by impact...

Orthodontic tooth movement of total buccally blocked-out canine is usually difficult as it is related with the problems of severe crowding, midline deviation, involvement of long root movement and risk of gingival recession. A case report was presented to illustrate the treatment principles. It demonstrated with careful planning in extraction sequence and orthodontic mechanics to deliver light,...

The main purpose of this study is to assess the effects of the interaction patterns between family planning workers and potential clients upon acceptance of family planning. The study was carried out as part of an intercountry collaborative study and guided by UN-ESCAP in 1991. For data collection, a random sampling procedure was applied in picking up the final units of areas (9 "dongs" in Ch...

This paper presents a method based on the reciprocal root locus (RRL) approach for solving the multiple vehicle path coordination problem. A high level planning assigns the tasks to each vehicle, specifying each mission, inside a structured workspace with known obstacles. The problem is solved in two steps: first the given workspace is mapped onto a semicircle, using the theory of conformal map...

Objective: To study the prevalence of root angulation through radiographic evaluation using panoramic radiographs and to record the extent of angulation among various teeth. Materials and methods: Panoramic radiographs of 506 patients within the age group of 18 to 70 years (196 males and 310 females) were subjected to a retrospective study for estimating the prevalence of root angulations of va...

Background: Periodontal disease is a chronic infection of the periodontium affecting the soft and mineralized tissues surrounding the teeth. Numerous therapeutic strategies have been aimed at eradication of the pathogens responsible for periodontal disease, including antimicrobial therapy both systemic and local. Objectives: 1. To compare local and systemic delivery of antimicrobial agents 2. T...

Data are presented from a multi-center, prospective, longitudinal, clinical trial comparing four different treatments for periodontitis, (1) the LANAPTM protocol utilizing a FR pulsed-Nd:YAG laser; (2) flap surgery using the Modified Widman technique (MWF); (3) traditional scaling and root planing (SRP); and (4) coronal debridement (CD). Each treatment was randomized to a different quadrant. Fi...