Successful endodontic treatment is based on the holy trinity of access preparation, chemo-mechanical cleaning and shaping and three-dimensional obturation of the root canal system. The complexity of root canal system and its variations may adversely affectthe endodontic treatment outcome. Therefore it is necessary to be aware of the possible anatomic variations for their successful management. Adental practitioner seldom faces C-shaped canal configuration in the mandibular second molar during its endodontic treatment. This type of canal configuration may cause diagnostic and anatomic difficulties which can lead to endodontic mishaps, if not managed strategically. The presented case series unveils the endodontic management of the different types of Cshaped canal configurations that would occur in mandibular second molars through a case series of 5 reports.

The aspiration of foreign bodies into the bronchus frequently occurs in children as well as in elderly people. Foreign bodies in the airway not only cause chronic cough and pneumonia, but also result in life-threatening conditions, such as dyspnoea, cyanosis and death. This report presents the clinical characteristics of 9-year-old patient with sub-glottis in the foreign body. The foreign body was dental root canal instrument (reamer).

It has been discerning that in approximately 2% of the population one or both the maxillary lateral incisors are congenitally missing. To achieve an optimal aesthetic for missing lateral incisor has been very challenging for a clinician. It is often necessary to establish a harmonious, interdisciplinary approach. There are various treatment options for replacing the missing maxillary lateral incisor, including canine substitution, three unit fixed partial denture or single-tooth dental implant. Dental implants are an appropriate treatment option for replacing missing maxillary lateral incisor teeth in adolescents when their dental and skeletal development is complete. In the present case report, the dental implant with angled abutment was planned as a definitive treatment option for a patient with congenitally missing maxillary lateral incisors.