# Task 1 Answers for 1 & part of 2 only. You may check your radiographic descriptions (2 &3 answers) during your radiology rotation. ## 1. a. Right posterior mandibular PA (of 46-47 region) b. 3 anatomical structures or landmarks i. Right mandibular canal ii. Inferior border of the right mandible iii. Developing follicle of Tooth 48 ## 2. a. Anterior maxillary PA (of 11-21 region) b. 3 anatomical structure or landmarks i. Same as the sample xray (intermaxillary suture is not as obvious, however) ## 3. a. Left bitewing b. 3 anatomical structures or landmarks i. Lamina dura of teeth ii. PDL spaces of teeth iii. Trabecular bone and alveolar crest ## 4. a. Mandibular anterior PA (or 32-42 region) b. 3 anatomical structures or landmarks i. Nutrient canal/s (41-42 site is most evident) ii. Lamina dura of teeth iii. PDL spaces ## 5. a. Left posterior maxillary PA (of 24-26 region) b. 3 anatomical structures or landmarks i. Left maxillary sinus (and the floor) – not the prominent alveolar recess at the edentulous 26 site. ii. Lamina dura of teeth iii. PDL spaces # Task 2 Answers 1. Maxillary denture in situ (ceramic teeth – not commonly used anymore) 2. Maxillary space maintainer in situ (orthodontic device) 3. Maxillary denture in situ (metal mesh covering the premaxilla) 4. Three left maxillary implants in situ #### Task 1 Answers For 1 & part of 2 only. You may check your radiographic descriptions (2 &3 answers) during your radiology rotation. 1. a. Right posterior mandibular PA (of 46-47 region) b. 3 anatomical structures or landmarks - Right mandibular canal - Inferior border of the right mandible - Developing follicle of Tooth 48 2. a. Anterior maxillary PA (of 11-21 region) b. 3 anatomical structures or landmarks - Same as the sample xray (intermaxillary suture is not as obvious, however) 3. a. Left bitewing b. 3 anatomical structures or landmarks - Lamina dura of teeth - PDL spaces of teeth - Trabecular bone and alveolar crest 4. a. Mandibular anterior PA (or 32-42 region) b. 3 anatomical structures or landmarks - Nutrient canal/s (41-42 site is most evident) - Lamina dura of teeth - PDL spaces 5. a. Left posterior maxillary PA (of 24-26 region) b. 3 anatomical structures or landmarks - Left maxillary sinus (and the floor) – not the prominent alveolar recess at the edentulous 26 site. - Lamina dura of teeth - PDL spaces #### Task 2 Answers 1. Maxillary denture in situ (ceramic teeth – not commonly used anymore) 2. Maxillary space maintainer in situ (orthodontic device) 3. Maxillary denture in situ (metal mesh covering the premaxilla) 4. Three left maxillary implants in situ [^1]: Original PDF page 1: [[Answers for Week 5 SDL.pdf#page=1|Answers for Week 5 SDL, p.1]]