Abstract: Introduction: Root canal preparation is one of the most important steps in the success of root canal therapy. Research has shown that different root canal shaping systems damage the root canal wall to various degrees resulting in dentinal cracks that have the potential to develop into vertical root fractures. TF adaptive technology is a recently introduced technology which shows both continuous rotation and reciprocation movements depending on the root canal morphology.
Materials and Methods: 40 freshly extracted single rooted human mandibular premolars were collected. Teeth with pre-existing defects were excluded from the study. The teeth were sectioned coronally to a length of 13mm. The mesiodistal and buccolingual width of canals were measured radiographically to standardize canal dimensions. All the teeth were mounted on acrylic blocks. Based on root canal instrumentation protocol the teeth were divided into four groups of (n=10) each. Group A: Control- No instrumentation was done. Group B: Teeth were instrumented using Twisted files Adaptive(Sybron Endo) motion. Group C: Teeth instrumented with Protaper used in reciprocation movement. Group D: Teeth instrumented Twisted files used in continuous rotation. After instrumentation root canals were sectioned at 3, 6,9mm from the apices and examined under Stereomicroscope for cracks under 25X magnification.
Results: The study results showed that control group showed no dentinal defects which was significantly lower than (P<0.05) other three groups. There was no statistical difference (P>0.05) between the TF used in adaptive rotation and Protaper used in reciprocating motion. The TF used in continuous rotation showed maximum dentinal cracks amongst the test groups which was significantly lower(P>0.05) than other two test groups.
Conclusion: Within the limitations of the study it can be concluded that instrumentation with rotary file systems induce dentinal cracks/craze lines. TF adaptive motion showed less dentinal cracks compared to TF in continuous rotation, Protaper in reciprocation.
Abstract: Dentistry has played a vital role in the development of modern anesthesia. The evolution of modern anesthesia started in the 19th century with the contributions from dentists like Horace Wells, William Morton and many others. Dentistry was the qualitative and quantitative leader in the provision of anesthesia at this time. Today dentistry has moved towards the use of local anesthetics (with or without sedation) for the control of pain and anxiety. More complicated and major procedures in oral and maxillofacial surgery still rely on the use of general anesthetics although not allowed to administer general anesthetics.
Keywords: Anesthesiology, Dentistry, Oral and
UNDERSTANDING EPIDEMIOLOGICAL TRANSITION IN INDIA
Author Name: Sreenath Hariharan, Anis Ahmed
Abstract: is a key biological phenomenon in various forms of life and as far as human species exist they are amenable to changes constantly. The impacts of epidemiologic, demographic and nutritional transitions are rapidly reflected in developing country like India in a negative way owing to the mistangled influences of globalisation, industrialisation and urbansiation. The key to balancing the aftermath of the transitions is proper planning and utilization of resources along with strong boost to public health awareness and environmental friendly policies to ensure maintenance of homeostasis. Inequalities in health still acts as major hurdle for efficient distribution of health care services to cater the ever growing population which requires design of proper health care statistics to identify the weaker sections of people and assigning policies for their overall well-being and development.
VERRUCOUS CARCINOMA IN ASSOCIATION WITH PROLIFERATIVE VERRUCOUS LEUKOPLAKIA: A CASE RARE ENTITY
Author Name: Tibin K Baby, Rekha Krishna Pillai, Bindhu P R, Priya Thomas
Abstract: Verrucous carcinoma ( VC) also known as Ackerman’s tumour is a low grade variant of oral squamous cell carcinoma (OSCC) commonly affecting the buccal mucosa of oral cavity. Clinically VC has a proliferative cauliflower-like appearance. Smokeless tobacco is found to be the most etiological factor for VC although other potentially malignant lesions like proliferative verrucous leukoplakia (PVL)may act as a predisposing factor. PVL is characterized by malignant transformation in nearly 74% of the cases and seen mainly in older women without any habits. It begins as a simple slow growing persistent leukoplakia that tends to spread, become multifocal and affects the gingiva frequently. We report a rare case of VC associated with PVL in 59 year old woman without any habits.
Abstract: Idiopathic gingival fibromatosis, also known as, gingival hyperplasia, is a rare condition affecting the oral cavity. It is nothing but the overgrowth of gingiva at some point of time leading to esthetic and phonetic problems. Herewith, we report a case of idiopathic gingival fibromatosis in a 43 year old male patient, highlighting differential diagnoses and its approach of management.