Prosthetic Importance of Extra-oral Landmarks

<p>To assist in the orientation of the anterior occlusal plane (D)</p> Signup and view all the answers

<p>The teeth should be set on the crest of the ridge (B)</p> Signup and view all the answers

<p>Ala-tragus line (D)</p> Signup and view all the answers

<p>It becomes deeper and more prominent (A)</p> Signup and view all the answers

<p>It allows for lip movement without denture displacement (D)</p> Signup and view all the answers

<p>It results in the border becoming less visible (C)</p> Signup and view all the answers

<p>They migrate close to the crest of the ridge (D)</p> Signup and view all the answers

<p>From the outer canthus of the eye to the tragus of the ear (D)</p> Signup and view all the answers

<p>Genioglossus muscle attachment points (D)</p> Signup and view all the answers

<p>The maxillo-mandibular relationship (A)</p> Signup and view all the answers

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

<p>It restores proper appearance of the sulcus (C)</p> Signup and view all the answers

<p>Canthus-tragus line (A)</p> Signup and view all the answers

<p>It reflects the mucosa of the lip to the alveolar ridge. (B)</p> Signup and view all the answers

<p>Orbicularis oris muscle (D)</p> Signup and view all the answers

<p>To facilitate functional movement of the buccal frenum. (C)</p> Signup and view all the answers

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

<p>Root of the zygomatic process (B)</p> Signup and view all the answers

<p>A band of dense connective tissue (A)</p> Signup and view all the answers

<p>Dislodgment of the denture (C)</p> Signup and view all the answers

<p>Orbicularis oris muscle (B)</p> Signup and view all the answers

<p>To enhance comfort and reduce difficulty with taste and speech (C)</p> Signup and view all the answers

<p>The denture base should be relieved over this area. (D)</p> Signup and view all the answers

<p>On each side of the midline, posterior to the junction of hard and soft palate (B)</p> Signup and view all the answers

<p>Cancellous bone covered by soft tissue (C)</p> Signup and view all the answers

<p>To avoid denture displacement by the masseter muscle (B)</p> Signup and view all the answers

<p>It serves as a base for denture retention. (C)</p> Signup and view all the answers

<p>It may appear as a cord-like soft tissue requiring intervention. (B)</p> Signup and view all the answers

<p>It needs to be surgically removed. (D)</p> Signup and view all the answers

<p>It indicates the posterior extension of the maxillary denture. (D)</p> Signup and view all the answers

<p>It should be opposed with a labial notch in the denture border. (A)</p> Signup and view all the answers

<p>It requires clearance to prevent denture dislodgement. (A)</p> Signup and view all the answers

<p>It is a primary stress bearing area. (C)</p> Signup and view all the answers

<p>One hamular notch to the other hamular notch. (B)</p> Signup and view all the answers

<p>Displacement of the denture may occur. (B)</p> Signup and view all the answers

<p>In the premolar region of the buccal surface. (C)</p> Signup and view all the answers

<p>It helps with denture support and provides a soft tissue seal. (A)</p> Signup and view all the answers

<p>It influences the thickness and length of the labial flange. (A)</p> Signup and view all the answers

<p>It marks the extension area for posterior palatal seal. (B)</p> Signup and view all the answers

<p>It varies in size and shape, sometimes requiring surgical intervention. (B)</p> Signup and view all the answers

<p>The attachment of the mylohyoid muscle. (C)</p> Signup and view all the answers

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

<p>Inability to fit the denture properly, necessitating relief or surgery. (B)</p> Signup and view all the answers

<p>It usually shifts to the crest of the ridge. (D)</p> Signup and view all the answers

<p>To avoid numbness of the lower lip. (D)</p> Signup and view all the answers

An imaginary line connecting the pupils of the eyes when the patient looks straight ahead. Helps in positioning the front teeth in a denture.

An imaginary line running from the wing of the nose to the earlobe. Helps in positioning the back teeth in a denture.

An imaginary line running from the outer corner of the eye to the earlobe. Assists in placing the hinge point (condyles) of the jaw.

A crease running from the wing of the nose downward to the corner of the mouth. Its depth changes with age.

The line separating the lip skin from the mouth lining. It changes with age and tooth loss.

A depression between the lower lip and the chin; its shape hints at facial skeletal structure.

A normal jaw relationship where the mento-labial sulcus is gently curved.

The muscle responsible for lip closure; changes with age and loss of teeth.

An imaginary line marking the border between the movable and immovable parts of the soft palate.

The part of the denture that rests on the soft palate to create a seal and prevent food from entering under the denture.

A notch on the denture flange that allows the labial frenum to move freely without displacing the denture.

The area where the mucosa of the lip transitions to the mucosa of the alveolar ridge.

A fold of mucous membrane located in the premolar region that connects the cheek to the gum.

A notch in the denture flange that accommodates the movement of the buccal frenum.

The area where the cheek mucosa transitions to the gum mucosa, extending from the buccal frenum to the retromolar pad.

A prominent anatomical landmark located at the posterior end of the mandibular ridge, behind the last molar.

A sharp ridge located on the medial side of the mandible, which should be recontoured during denture construction for better flange placement and border seal.

Two small projections on the medial side of the mandible, located on each side of the symphysis. Represent attachment points for muscles that control tongue movement.

A powerful muscle located in the floor of the mouth, responsible for speech, swallowing, and taste. It plays a crucial role in denture stability and must be accommodated during denture design.

The line that marks the highest point of the tongue, which should be lower than the occlusal plane of dentures to allow for proper tongue movement and food placement.

A fold of mucous membrane in the midline of the upper lip, it can be single or multiple. It moves with the muscles of the lips and must be accommodated during denture fabrication.

The denture border must be designed to allow for movement of the labial frenum without dislodging the denture or causing irritation.

The area around the denture, where the denture meets the surrounding tissues. This area is crucial for denture stability.

The denture border design should allow for movement of the labial frenum without disturbing the seal or causing irritation.

A bony bulge present in the midline of the palate. Its size and form can vary. If small, relieve the denture base over it; if large, surgically remove it.

Two small pits or depressions on either side of the midline, just behind the junction of the hard and soft palate. They are openings for minor salivary gland ducts.

The part of the alveolar process and its covering soft tissue remaining after tooth extraction. The highest point is called the crest of the ridge.

A dense bony ridge descending from the ramus of the mandible downwards and forwards, fading at the mental foramen.

A nearly horizontal shelf of bone located between the crest of the residual ridge and the external oblique ridge in the molar area. It's made of dense, compact bone.

The covering of the palatal mucosa, which contains the palatine rugae and serves as the base for dentures.

These ridges on the palate help with speaking, sucking, and swallowing.

The denture should extend 2mm posterior to these pits to ensure proper fit and function.

The area where the lining of the lip transitions to the lining of the alveolar ridge. It extends from the labial frenum to the buccal frenum.

The reflection of mucous membrane from the cheek to the alveolar ridge, distal to the buccal frenum.

A muscle located in the cheek responsible for sucking and chewing. Strong and helps in keeping food on teeth during chewing.

A notch located between the maxillary tuberosity and the pterygoid hamulus. A band of loose connective tissue providing flexibility.

A bony prominence on the outer surface of the mandible, located between the roots of the first and second premolars. It serves as a passageway for nerves and blood vessels to the lower lip.

A pear-shaped soft tissue pad located at the back of the lower jaw, directly behind the last molar. It contains important structures like glands, tendons, and muscles.

A bony ridge on the inside surface of the mandible, running from the third molar towards the midline. It marks the attachment of the mylohyoid muscle.

It is located on the buccal surface of the mandible in the premolar region between the roots of the first and second premolars and through it mental nerves and vessels pass.

A pear shaped pad of soft tissue present bilaterally at the distal end of the residual mandibular ridge.It contains mucous glands, temporal tendon, pterygo-mandibular raphe, fibers of buccinator muscle and superior constrictor muscle of pharynx.

It is a bony prominence sometimes present on the inner surface of the mandible in the premolar region.It varies in size and shape.It is either unilateral or bilateral.

It should be included in the denture bearing area.

When it is covered with thin mucosa, relief of the denture base in this area could be made to avoid impingement of the mucosa.