Résumé
Introduction: Since its introduction in the dentistry calcium hydroxide (Ca(OH)2 has been used for a wide variety of purposes. Its use in root canal treatment as an intracanal medication has been associated with periradicular healing. Aim: To report a case of accidentally extruded Ca(OH)2 paste into the periradicular lesion associated withthe mandibular left central incisor and evaluate the prognosis of periradicular healing. Methods:The canal of mandibular left central incisor was prepared and Ca(OH)2 paste with Iodoform was used as an intracanal medicament. The medicament was accidently extruded into the periradicular tissues. Follow-up was done to determine the effect of extruded medicament on periradicular tissues and healing. Conclusion:The follow-up radiograph after 8 months showed complete resolution of the periapical lesion and resorption of the Ca(OH)2 paste.
Résumé
Aim: To give notation for quadrants, tooth position, and the type of supernumerary teeth for both permanent and deciduous dentition. Tooth numbering provides dentists with an essential shortcut in clinical record keeping. Materials and Methods: Three systems are favored worldwide: the Zsigmondy/Palmer system, the Universal system, and the Federation Dentaire Internationale (FDI) Two-Digit system. Histories of all tooth-numbering methods were traced and the strengths and deficiencies of each system were reviewed. The FDI Two-Digit system is widely used throughout the world, except USA, and is the only method that makes the visual sense, cognitive sense, and computer sense. Conclusion: On review it was noticed that all tooth notation systems in vogue have a drawback as they do not provide any information or notations for supernumerary teeth such as paramolar, distomolar, mesiodens, and fused teeth.