54507

Inferior alveolar nerve block is absolutely contraindicated in patients suffering from haemophilia.

36678

Down syndrome is characterized by maxillary hypoplasia, which gives the appearance of relative mandibular prognathism. The underdeveloped maxilla, combined with a relatively normal-sized mandible, creates the characteristic facial profile. Other features include macroglossia, high arched palate, delayed tooth eruption, and increased periodontal disease susceptibility. The maxillary hypoplasia is a key diagnostic facial feature along with the typical mongoloid facies.

55614

Phenytoin, cyclosporine, and nifedipine are well-known medications that can cause gingival enlargement (gingival hyperplasia or gingival changes) as a side effect.

Phenytoin is an anticonvulsant used to treat epilepsy.

Cyclosporine is an immunosuppressant used to prevent organ rejection in transplant patients and to treat autoimmune diseases.

Nifedipine is a calcium channel blocker used to treat high blood pressure and angina.

69593

26977

The optimal range of orthodontic force for effective root uprighting is considered to be between 35 and 60 grams, balancing efficiency with the minimization of tissue damage.

19495

Screen films are specifically designed to be more sensitive to light than to X-rays. They work in conjunction with intensifying screens that convert X-ray energy to light photons. The film responds primarily to the light emitted by the phosphors in the intensifying screens, not directly to X-rays.

54787

Retention grooves in a class V cavity for non-adhesive restoration are placed in the mesioaxial and distoaxial line angles. These grooves help hold the restoration in place by providing mechanical retention and reducing the risk of microleakage.

70667

Secondary occlusal trauma primarily relates to occlusal discrepancies or effects on tooth mobility due to periodontal attachment loss rather than localized gingival inflammation alone.

94938

Trismus in parapharyngeal abscess is due to spasm of the medial pterygoid muscle. The infection in the parapharyngeal space causes irritation and reflex spasm of this muscle, which is closely related anatomically to this space, resulting in restricted mouth opening.

48667

Penicillamine is a chelating agent that binds to copper ions, forming a stable, water-soluble complex that is excreted by the kidneys. It is the gold standard for Wilson’s disease treatment.