NEET MDS Shorts
70988
EndodonticsLateral condensation is considered the best method of gutta-percha condensation and is the gold standard technique. Advantages include: 1) Predictable and controllable technique, 2) Excellent apical seal when properly executed, 3) Suitable for most canal configurations, 4) Allows for incremental placement and evaluation, 5) Easy retrieval if retreatment is needed, 6) Well-researched with proven clinical success. While vertical condensation can provide excellent results in skilled hands, lateral condensation is more universally applicable and has the most extensive research supporting its effectiveness.
80760
EndodonticsCorticosteroids are anti-inflammatory agents that can be used to manage acute pulpal pain when immediate pulp extirpation (removal) is not feasible. Their mechanism of action involves reducing inflammation within the pulp tissue, thereby alleviating pain.
56518
EndodonticsNight guard bleaching refers to a dentist-prescribed home-applied technique where the patient uses custom-fitted trays filled with carbamide peroxide gel, typically worn overnight. Key features: 1) Dentist provides custom trays and bleaching gel, 2) Patient applies treatment at home under professional supervision, 3) Uses lower concentrations (10-15% carbamide peroxide) for safety, 4) Extended contact time (6-8 hours) compensates for lower concentration, 5) Also called tray bleaching or home bleaching.
69979
EndodonticsThe main disadvantage of calcium hydroxide in deciduous tooth pulpotomy is internal resorption, which can occur when inflamed pulp tissue remains. This is why formocresol or ferric sulfate are preferred for primary teeth.
12021
EndodonticsFormocresol is a commonly used fixative and disinfectant in endodontic treatment. It is known to produce tissue fixation by causing coagulative necrosis. This is the process by which the proteins within the tissue are coagulated or precipitated, leading to the death of cells due to dehydration and denaturation. The necrotic tissue is then replaced by a fibrous connective tissue, which is essential for the healing process in the periapical region following root canal treatment.
34040
EndodonticsThe most frequent failures of root canal treated cases are often due to inadequate obturation. This can occur when the root canal filling material does not completely fill the space or when it is not properly compacted, leaving gaps where bacteria can persist and cause reinfection. Proper preparation and sterilization are also crucial, but inadequate obturation is the most common technical error leading to treatment failure.
18573
EndodonticsExplanation: X-rays are essential in evaluating traumatized teeth for multiple reasons, including detecting root fractures, assessing root development, and planning future treatment. This comprehensive view aids in effective management of dental trauma.
98251
EndodonticsLaser Doppler flowmetry is used in dentistry to assess pulp vitality by measuring blood flow within the pulp tissue. It detects the movement of red blood cells using a low-power laser beam, making it a non-invasive method for determining the health of a tooth's pulp.
97712
EndodonticsEndodontic treatment can be performed without removing orthodontic appliances. Access can be gained through the lingual surface or by carefully working around brackets. Removing arch wires interrupts orthodontic treatment unnecessarily.
41095
EndodonticsA permanent tooth with apical one-third root fracture would most likely remain vital and functional. Apical third fractures have favorable prognosis because: 1) Good blood supply is maintained to the coronal fragment through the periodontal ligament, 2) The fracture is away from the oral environment, reducing contamination risk, 3) Pulp often remains vital due to minimal disruption of apical blood supply, 4) Healing usually occurs with fibrous union between fragments, 5) Function is typically maintained. Root resorption and ankylosis are less common with apical third fractures compared to cervical fractures.