Oral Anatomy and Histology Quiz

<p>Type I (C)</p> Signup and view all the answers

<p>Between the gingiva and the tooth. (D)</p> Signup and view all the answers

<p>Stratum basale (D)</p> Signup and view all the answers

<p>1:36 (B)</p> Signup and view all the answers

<p>Dentogingival fibers (D)</p> Signup and view all the answers

<p>Dermatan sulfate (B)</p> Signup and view all the answers

<p>Decreased stippling (C)</p> Signup and view all the answers

<p>Vascular supply and pigmentation (A)</p> Signup and view all the answers

<p>Distal third (A)</p> Signup and view all the answers

<p>Thick and flat (A)</p> Signup and view all the answers

<p>Fibroblasts (B)</p> Signup and view all the answers

<p>Juxta-epithelial plexus (D)</p> Signup and view all the answers

<p>Passive eruption (A)</p> Signup and view all the answers

<p>Apical (A)</p> Signup and view all the answers

<p>Acellular cementum contains no cementocytes, while cellular cementum contains cementocytes (C)</p> Signup and view all the answers

<p>Sensory perception of pressure and pain (B)</p> Signup and view all the answers

<p>Epithelial rests of Malassez (D)</p> Signup and view all the answers

<p>It is thicker in functioning than non-functioning teeth (B)</p> Signup and view all the answers

<p>Glycosaminoglycans (A)</p> Signup and view all the answers

<p>Formation of cementum (A)</p> Signup and view all the answers

<p>The periodontal ligament is not visible on a panoramic radiograph (D)</p> Signup and view all the answers

<p>To provide support and attachment for the teeth. (C)</p> Signup and view all the answers

<p>The thin, compact bone that forms the inner socket wall. (D)</p> Signup and view all the answers

<p>To connect the periodontal ligament to the cementum of the tooth. (D)</p> Signup and view all the answers

<p>Endosteum (D)</p> Signup and view all the answers

<p>1.08 mm (C)</p> Signup and view all the answers

<p>Fenestration (D)</p> Signup and view all the answers

<p>It is formed when the tooth erupts and gradually disappears after the tooth is lost. (B)</p> Signup and view all the answers

<p>It increases. (B)</p> Signup and view all the answers

<p>Keratinocytes and Fibroblasts (A)</p> Signup and view all the answers

<p>Probing depth typically overestimates the sulcus or pocket depth. (A)</p> Signup and view all the answers

<p>0.2mm (C)</p> Signup and view all the answers

<p>Type I (D)</p> Signup and view all the answers

<p>It acts as a strong barrier against bacteria. (C)</p> Signup and view all the answers

<p>Gingiva has a more stable relationship with restoration margins than alveolar mucosa. (A)</p> Signup and view all the answers

<p>Stage 3 JE is attached to cementum, while Stage 4 JE is attached to both cementum and enamel. (D)</p> Signup and view all the answers

<p>It is typically found at the apical third of the root. (D)</p> Signup and view all the answers

<p>Cementum is thinnest at the CEJ and thickens towards the apex. (C)</p> Signup and view all the answers

<p>Hydroxyapatite (C)</p> Signup and view all the answers

<p>They represent periods of growth and formation. (D)</p> Signup and view all the answers

<p>Cementum provides a strong attachment site for periodontal ligaments. (B)</p> Signup and view all the answers

<p>Extrinsic fiber cementum (D)</p> Signup and view all the answers

<p>Can vary in morphology, including overlap and butt joint. (D)</p> Signup and view all the answers

<p>The higher mineral content of cementum makes it less susceptible to resorption. (C)</p> Signup and view all the answers

A collar-like band of stratified squamous non-keratinizing epithelium that forms the junction between the tooth and the gum.

The process where keratinocytes migrate and transform into keratinized cells during epithelial growth.

The principal cell in keratinization, making up 90% of the epidermis.

A type of epithelium that lacks keratin and is thicker than keratinized mucosa.

Connective tissue layer beneath the epithelium, consisting of cells, blood vessels, and fibers.

Connective tissues that support and attach the gingiva to the tooth.

Groups of fibers in gingival connective tissue: gingivodental, circular, and transseptal.

Collagen in gingival connective tissue, primarily type I, followed by type III, providing strength.

Fibers connecting adjacent teeth across the interproximal space, providing support.

Fibers anchoring the gingiva to the underlying alveolar bone.

The most apical point of the marginal gingival scallop.

Classification of gingiva into thick and thin biotypes affecting treatment decisions.

Textured appearance of healthy attached gingiva resembling orange peel.

Different cells present in gingiva; e.g., fibroblasts, neutrophils contribute to health.

Color impacted by blood supply, keratinization, and pigmentation textures.

Main sources include supraperiosteal arterioles, PDL vessels, and alveolar septa arterioles.

A unique tissue structure attaching gingiva to tooth, turns over in 1-6 days.

Fluid in the gingival sulcus derived from blood and contains inflammatory cells.

Area between teeth covered by non-keratinized epithelium, susceptible to disease.

Connective tissue surrounding tooth root, connecting tooth to alveolar bone.

Surgical procedure to restore deficient gingival tissue using grafts.

Measurement may overestimate actual sulcus/pocket depth due to inflamed tissues.

Part of gingiva that is keratinized, critical for protecting oral tissues.

The process where the periodontal ligament undergoes calcification, influenced by non-collagenous proteins like osteopontin.

The periodontal ligament is made up of connective tissue cells including fibroblasts, cementoblasts, osteoblasts, and more.

A component of PDL ground substance, includes hyaluronic acid and proteoglycans, crucial for structure.

The periodontal ligament provides physical support, nutrition, sensory feedback, and remodeling of structures.

In periapical radiographs, the periodontal ligament appears radiolucent due to its high water content.

Acellular cementum is primary and without cells, while cellular cementum is secondary and contains cementocytes.

Cementum is lighter and less hard than dentin and is permeable under certain conditions, not glossy like enamel.

The periodontal ligament contains undifferentiated mesenchymal cells, allowing for regeneration of tooth-supporting structures.

A dental procedure for removing calculus and bacterial deposits from teeth, potentially exposing dentin.

The removal of the cementum layer can expose dentin, causing tooth sensitivity.

Small calcified structures that may form in the periodontal ligament or on the root surface.

Bone that supports tooth sockets, forming during tooth eruption and decreasing after tooth loss.

An external plate of dense bone forming the outer walls of the alveolar process.

The inner socket wall seen as a thin, compact bone layer on radiographs.

Isolated areas where the root is uncovered by bone, only covered by gum tissue.

The process of bone resorption and formation, crucial for bone health and shape.

Cementum comprises 45-50% inorganic materials (mainly calcium and phosphate) and 50-55% organic materials (type 1 collagen and proteoglycans).

Cementum is classified into acellular afibrillar, acellular extrinsic fiber, cellular mixed stratified, and cellular intrinsic fiber types.

Covers root dentin from CEJ to apex, lacks cementocytes in some layers, and is thinnest at CEJ (20-50µm).

Contains cementocytes within lacunae, mainly present at the apical third of the root, and thicker than acellular cementum.

The junction where cementum overlaps enamel in 60-65% of teeth and can meet or have no overlap.

Cementum is thinnest at the CEJ (20-50µm) and thickest at the root apex (150-200µm).

Cementum is crucial for anchoring teeth and is more resistant to resorption than bone.

Cementum's resistance to resorption allows for effective orthodontic adjustments without damaging the tooth.