Table of contents   

STRESS IN THE PERIODONTAL LIGAMENT DURING ORTHODONTIC RETRACTION OF POSTERIOR TOOTH: A FINITE ELEMENT ANALYSIS   

Abstract: The purpose of the study was to use the finite element method to investigate the stress related changes in periodontal ligament of the posterior segment under orthodontic force application. The three dimensional finite element models of the maxillary first molar, maxillary first premolar, bracket, arch wire and molar tube are constructed. The models of the tooth were made from CT scans of the upper dentition. Uneven distributions of the compressive and tensile stresses were seen in the PDL. This was due to the tendency of the teeth to rotate and tip instead of undergoing bodily movement.

Keywords: Orthodontic, Dentoalveolar, Archwire, FEM

ROOT RESORPTION AND ORTHODONTICS   

Abstract: Orthodontic treatment and apical root resorption have been associated for many years. External root resorption is a feared complication during Orthodontic procedures. It can affect both the apex, but also the cervical zone of the roots subjected to Orthodontic forces for tooth movement and can compromise the future of the involved teeth. The detection of resorptions can occur during and/or after the active phase of Orthodontic treatment. The patient must be informed about the risks of resorption as a consequence of Orthodontic treatment. However, despite the rigorous efforts of knowledgeable individuals, the exact nature of the initiation and control of apical root resorption remains essentially unknown.  Although apical root resorption may occur in individuals who have never experienced Orthodontic tooth movement, the incidence among treated individuals is quite high. These facts oblige the Orthodontist to seek a better understanding of the cause and prognosis of this phenomenon.

Keywords: Orthodontic treatment, root resorption

WHAT’S NEW ABOUT IMPLANTS? LIGAPLANTS?   

Abstract: A tissue-engineered periodontal ligament (PDL) around implants would represent an important new therapeutic tool to replace lost teeth. The PDL is the key to tooth anchoring; it connects tooth root and alveolar bone, and it sustains bone formation. The implant with periodontal ligament called as ‘ligaplant’ is the new emerging era in the field of dentistry where tissue engineered periodontal ligament cells on the implant surface are formed thus mimicking the natural tooth. Such advancement would revolutionize implant dentistry and would be significantly beneficial to patients.

Keywords: Ligaplants, Dental implants

INDIRECT LAMINATE VENEERS PREPARATION DESIGNS AND MATERIAL SELECTION   

Abstract: One of the most frequent reasons that patient seeks dental care is discolored anterior teeth. Ceramic laminate veneers, also known as “contact lens,” are capable of providing an extremely faithful reproduction of the natural teeth with great color stability and periodontal biocompatibility. This review article will be discussing different preparation designs and material options of indirect veneer.

Keywords: Indirect Laminate Veneers, ceramic, tooth preparation

PHYTOMEDICINES – CURRENT APPLICATIONS IN ENDODONTICS   

Abstract: The success of root canal depends on effective disinfection of the entire root canal system. There is no single irrigating solution that alone sufficiently covers all the functions required from an irrigant. Herbal alternatives have come into existence due to the potential side effects, safety concerns and ineffectiveness of the chemical irrigants available now. This review highlights the antimicrobial properties of commonly used herbal medicaments such as Camellia sinensis, Azadirachta indica, Aloe barbadensis miller, Triphala, Morinda citrifolia, Propolis, Arctium lappa, Tachyspermum ammi, Curcuma longa, Chamomilla recutita and Salavadora persica in endodontics.

Keywords: Phytomedicines, endodontics, Camellia sinensis, Azadirachta indica, Aloe barbadensis miller, Triphala, Morinda citrifolia, Propolis, Arctium lappa, Tachyspermum ammi, Curcuma longa, Chamomilla recutita, Salavadora persica

MANAGEMENT OF ROTARY FILE SEPARATION IN MANDIBULAR MOLAR: CASE REPORT   

Abstract: Intracanal separation of endodontic instruments may hinder cleaning and shaping procedures within the root canal system, with a potential impact on the outcome of treatment.  A separated instrument in the root canal interferes with root canal cleaning, shaping, filling, and negatively affects the patient's experience. The ideal solution of the problem is to remove the separated instrument without any complication. However, the retrieval of separated instruments is one of the most difficult operations in endodontic treatment, which is time consuming and requires skillful operation, advanced techniques, and professional equipment. In addition, there are considerable risks during the retrieval process, such as ledge formation, re-fracture of instruments, and perforation or vertical cracks due to over-preparation of root canals. The retrieval rate of separated instruments is affected by multiple factors such as the tooth position, the root canal curvature, the depth, length, type, and material of separated instruments. This is a clinical case report of instrument separation at orifice level in mandibular molar. Treatment consisted of retrieval of separated instrument with the aid of a dental operating microscope and completion of endodontic therapy. 

Keywords: Intracanal separation, root canal curvature

MUCOCELE ON THE VENTRAL SURFACE OF TONGUE: A RARE CASE REPORT   

Abstract: Mucoceles represent one of the most common lesions of the oral cavity, developing as a result of saliva accumulation. The most frequent affected area is the lower lip, followed by floor of mouth, ventral tongue and buccal mucosa. Mucoceles originating on the ventral surface of the tongue are less common ( 4.9%). In this report a mucocele developed on the dorsal tongue of a 17 year-old male is described. Additionally a review of previously published mucoceles on the ventral surface of the tongue is provided and discussed.

Keywords: Mucocele, Blandin, Nuhn, Salivary gland

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