Chapter 1 : Anatomy of Orofacial structures 8th Edition latest update 2024 PASS A+

Chapter 1 : Anatomy of Orofacial structures 8th Edition latest update 2024 PASS A+ Diastema - ANSWER-An open space between the two adjacent teeth. What can cause a diastema? - ANSWER-Large labial frenulum To correct it must be surgically removed and if this procedure does not close it all the way mild ortho treatment may be required. Where does the oral cavity begin and end? - ANSWER-Begins and the lips and cheeks and ends at the oral pharynx What to systems do the oral cavity introduce? - ANSWER-Beginning of the digestive system At the posterior forms a common pathway with the respiratory system Where do the tonsillar pillars lie? - ANSWER-Between the anterior and posterior tonsillar pillars The oral cavity is divided into two parts: - ANSWER-vestibule and oral cavity proper Vestibule - ANSWER-Space between the teeth and the inner mucosal lining of the lips and cheeks Where does an edentulous person's vestibule end? - ANSWER-At the alveolar ridge Oral Cavity Proper - ANSWER-Area surrounded/contained by the teeth back to the area of the palatine tonsils Includes floor of the mouth and hard and soft palate Vermillion zone - ANSWER- Vermillion Border - ANSWER-area where the pink-red lip tissue meets the facial skin lip line Ala of the nose - ANSWER-The wing of the nose or outer edge of the nostril Nares - ANSWER-nostrils Labial commissure - ANSWER-corners of the mouth Philitrum - ANSWER-vertical groove on the middle of the upper lip. Cupids bow Zygomaticoalveolar crest - ANSWER-ridge of bone at the upper posterior vestibular space; beginning of the anterior part of the zygomatic arch (cheekbone) Mucobuccal/mucolabial fold - ANSWER-Point at which the mucosa of the lips and cheeks turns to go towards the gingival tissue alveolar mucosa - ANSWER-Mucosa lying against the alveolar bone that is loosely attached and and moveable What color is alveolar mucosa and why? - ANSWER-Reddish because of the presence of blood vessels underneath the thin mucosa mucogingival junction - ANSWER-Distinct line of color change in the tissue where the alveolar membrane meets with attached gingivae Labial Frenum (Frenulum) - ANSWER-fold of connective tissue at the midline in upper and lower lips Done between ages of 6-12 coronoid process - ANSWER-Bony projection at anterior border of mandibular ramus Point of attachment for the temporal muscle Alveolar Bone loss - ANSWER-If too much bone is lost there may not be enough left to anchor the teeth or support an implant