79980

Endodontic surgery (apicoectomy) is contraindicated in several situations: 1) Medically compromised patients with uncontrolled diabetes, bleeding disorders, immunocompromised states, or severe cardiovascular disease pose surgical risks, 2) Mandibular lingual molar area has high risk of lingual nerve damage and difficulty in access due to anatomical constraints, 3) Tooth close to maxillary sinus has risk of creating oro-antral communication or pushing infected material into the sinus. All these conditions make endodontic surgery inadvisable.

62036

The majority of bicarbonate reabsorption occurs in the Proximal Convoluted Tubule (PCT), which is essential for maintaining acid-base balance.

87009

57252

The purpose of a thermal insulating base is to protect the pulp from temperature changes during the placement of a restoration.

69244

Mycobacterium tuberculosis: Fluorescent microscopy can be used to detect Mycobacterium tuberculosis in clinical specimens, especially when using specific fluorescent dyes (like auramine-rhodamine) that bind to the mycobacterial cell wall. This method allows for the visualization of the bacteria under a fluorescence microscope, making it a valuable tool in the diagnosis of tuberculosis.

91045

The transport maximum for substances like glucose and phosphate represents the maximum amount that can be actively reabsorbed by the tubules before reaching saturation and being excreted in urine.

12725

Primary prevention aims to stop disease before it starts. Pit and fissure sealants protect tooth surfaces and prevent caries formation.
Serial extraction and scaling and root planning are examples of secondary or tertiary prevention, as they involve treatment after a condition (malocclusion or periodontal disease) has already started.
Fluoride use on incipient caries is also secondary prevention as it aims to halt the progression of an already existing early lesion.

89636

Which of the following is an example of a static method of recording centric relation: intraoral records.

39341

The primary function of the descending limb of the Loop of Henle is the reabsorption of water, which concentrates the tubular fluid as it descends.

56709

Chicken pox presents with multiple dermal lesions characteristically with vesicles, pustules which may secondarily ulcerate