Preprosthetic surgery Flashcards
1
Q
Structures that may require removal
A
- Tori
- Frenuli
- Mylohyoid ridges and alveolar crest
- Maxillary tuberosity reduction
- Epiludes on maxillary vestibule
- Alveoloplasty following tooth removal
- Exostosis
- Reduction of genial tubercles
- Removal of palatal papillary hyperplasia
2
Q
Why preprosthetic surgery is undertaken
A
- Irregular soft tissue anatomy-impingement of flanges
- Health of overlying mucosa affected by bony irregularites
- Anatomy prevents seating of denture and dislodgement
- Pain and discomfort
3
Q
Effect of tori on prosthesis
A
- Discomfort and prevent seating
3
Q
Effect of frenuli on prosthesis
A
Interfere with seating and dislodgement
4
Q
Effect of irregular mylohyoid ridges and alveolar crest
A
- Irritation and pain during occlusal loading
5
Q
Effect of epiludes on maxillary vestibule
A
- Source of infection, irritation and pain
6
Q
Why alveoloplasty is undertaken
A
- After extraction to preserve alveolar bone integrity
6
Q
Procedure for alveoloplasty
A
- LA
- Incision(horizontal w/ two releasing incisions)
- Bone accessed and trimmed w/ ronguers, fine osteotome or bone file
- Closing of area
7
Q
Exostosis
A
- Benign hypertrophic formations
- More common in maxilla
8
Q
Treatment of exostosis
A
- LA
- Envelope flap w/ vertical releasing incision
- Bone resected and then smoothed with osteotome or bur
9
Q
Genial tubercles
A
- Genioglossus muscle attaches to it at lingual aspect
- Mandibular resorption- more prominant tubercle
- Impairs wearing of denture and function
10
Q
Treatment/removal of genial tubercle
A
- LA
- Crestal incision w/15 blade
- Subperiosteal access obtained until tubercles and muscle evident
- Sharp dissection of genioglossal muscle(electrocautery)
- Resection of tubercle w/ fissure bur
- Strict homeostasis before closure
10
Q
Mylohoid ridge
A
- Extensive resorption of mandible= mylohyoid ridge prominence
- Denture displacement and muscle strain+pain
11
Q
Procedure of reduction of mylohyoid ridge
A
- LA
- Crestal incision along posterior mandibular ridge
- Subperiosteal dissection to expose ridge and muscle
- Muscle attachment grasped w/ curved clamp and seperated w/ electrocautery
- Smoothing of ridge w/ bur
- Suturing
12
Q
Palatal and lingual exostoses aka tori are
A
Benign osseous growth
