33601

In which of the following situations the alveolar ridge resorption is least: anterior mandibular area with overdentures on canines.

37435

Osmotic fragility is increased in hereditary spherocytosis due to the abnormal shape and membrane stability of red blood cells.

86052

Parathyroid hormone (PTH) levels are mainly controlled by a feedback loop of calcium levels in your blood to your parathyroid glands. In other words, low calcium levels in your blood stimulate parathyroid hormone release, whereas high calcium levels in your blood prevent your glands from releasing parathyroid hormone.

12455

The straight elevator is properly used to advantage when the interdental bone is used as a fulcrum. This is because the straight elevator can be inserted into the periodontal ligament space along the long axis of the tooth, and when levered against the interdental bone, it helps in lifting the tooth from the socket. Using the adjacent tooth as a fulcrum can potentially damage it.

49813

Crohn/s disease is a type of inflammatory bowel disease (IBD) that can affect any part of the gastrointestinal tract from mouth to anus. A key pathological feature of Crohn/s disease is the presence of non-caseating granulomas (collections of inflammatory cells) in the affected tissue. These granulomas are not typically found in ulcerative colitis, the other major type of IBD.

59383

In post core preparation, the sectional gutta-percha technique is used. This technique involves: 1) Removing the coronal portion of gutta-percha for post space preparation, 2) Leaving the apical portion intact to maintain apical seal, 3) The gutta-percha is sectioned at a predetermined level (usually leaving 4-5mm apically), 4) Heat or solvents are used to remove only the coronal portion, 5) This maintains the apical seal while allowing post placement. Thermoplasticized and vertical techniques make removal more difficult, while lateral condensation can be sectioned but is not specifically designed for post preparation.

28784

14730

The difficulty score for a mesioangular Class II position C mandibular third molar is typically determined using a standardized scoring system in dentistry, such as the Pederson difficulty index. A score of 6 indicates a high level of difficulty for the extraction procedure due to the specific angulation and depth of the impacted tooth.

56492

Articulators are classified into arbitrary positional and functional by Boucher.
Arbitrary positional articulators hold the mandible in a pre-determined, fixed position that does not necessarily represent the patient's true centric relation or functional movements.
Functional articulators, on the other hand, aim to simulate the patient's individual centric relation and dynamic movements of the mandible, allowing for a more accurate representation of the patient's actual occlusion.
Boucher's classification system is based on the type of articulation and the way it records and transfers the patient's jaw movements to the dental casts.

74128

Lupus nephritis is the most common complication of chronic SLE, affecting approximately 50% of patients. It is characterized by inflammation of the kidneys and can lead to kidney failure if not properly managed.