lec 8 - preparation of mouth for rpd

Question 1

• Conditions that address that puts the prosthesis into comfort.

Answer 1

MOUTH PREPARATION

Question 2

for proper tooth stabilization and support

Answer 2

• Tooth alteration

Question 3

• Mouth preparation includes procedures that address conditions that put comfortable prosthetic function at risk and include tooth alteration that are required to for proper tooth stabilization and support of the prosthesis.

Answer 3

Extractions

Question 4

• All impacted teeth, including those in edentulous areas, as well as those adjacent to abutment teeth, should be considered for removal.

Answer 4

Impacted Teeth

Question 5

• The loss of individual teeth or groups of teeth may lead to extrusion, drifting, or combinations of malpositioning of remaining teeth.

Answer 5

Malposed Teeth

Question 6

• _______________ are recommended to survey the jaws for unsuspected pathologic conditions.

Answer 6

Panoramic radiographs of the jaws

Question 7

• The patient should be informed of the diagnosis and provided with various options for resolution of the abnormality as confirmed by the pathologist’s report.

Answer 7

Cysts and Odontogenic Tumors

Question 8

• Removable partial denture components in proximity to this type of tissue may cause irritation and chronic ulceration.

Answer 8

Bony Exostoses and Tori

Question 9

• Also, _________ approximating gingival margins may complicate the maintenance of periodontal health and lead to the eventual loss of strategic abutment teeth.

Answer 9

exostoses

Question 10

seen in the form of fibrous tuberosities, soft flabby ridges, folds of redundant tissue in the vestibule or floor of the mouth, and palatal papillomatosis

Answer 10

Hyperplastic Tissue

Question 11

• All these forms of excess tissue should be removed to provide a firm base for the denture. This removal will produce a more stable denture, will reduce stress and strain on the supporting teeth and tissues, and will provide a more favorable orientation of the occlusal plane and arch form for the arrangement of the artificial teeth in many instances.

Answer 11

Hyperplastic Tissue

Question 12

• As a result of the loss of bone height, _________ may insert on or near the residual ridge crest.

Answer 12

muscle attachments

Question 13

Muscle Attachments and Frenum:
most likely to introduce problems of this nature.

Answer 13

mylohyoid, buccinator, mentalis, and genioglossus muscles

Question 14

• ____________ should be removed and _________ gently rounded.

Answer 14

sharp bony spicules
knifelike crests

Question 15

• However, use of a dental implant can effectively enhance functional comfort in such an instance.

Answer 15

Bony Spicules and Knife-Edged Ridges

Question 16

• All abnormal soft tissue lesions should be excised and submitted for pathologic examination before a removable partial denture is fabricated.
• Even though the patient may relate a history of the condition having been present for an indefinite period, its removal is indicated.
• New or additional stimulation to the area introduced by the prosthesis may produce discomfort or undesirable changes in the tumor.

Answer 16

Polyps, Papillomas, and Traumatic Hemangiomas

Question 17

• All abnormal white, red, or ulcerative lesions should be investigated, regardless of their relationship to the proposed denture base or framework.
• The lesions should be removed and healing accomplished before the removable partial denture is fabricated.

Answer 17

Hyperkeratoses, Erythroplasia, and Ulcerations

Question 18

• An imbalance of the position, size, shape, or orientation of the bones that comprise upper and lower jaws due to skeletal growth disturbances.

Answer 18

Dentofacial Deformity

Question 19

• Causes:
  o Childhood fractures of the jaw
  o Muscle dysfuction
  o Genetic influences
  o Other Diseases

Answer 19

Dentofacial Deformity

Question 20

• A number of implant devices to support the replacement of teeth have been introduced to the dental profession.
• These devices offer a significant stabilizing effect on dental prostheses through a rigid connection to living bone.

Answer 20

Dental Implants

Question 21

• Considerable attention has been devoted to ridge augmentation with the use of autogenous and alloplastic materials, especially in preparation for implant placement.
• Clinical results depend on careful evaluation of the need for augmentation, the projected volume of required material, and the site and method of placement.

Answer 21

Augmentation of Alveolar Bone

Question 22

The dentist who is considering removable partial denture fabrication must be certain that these criteria have been satisfied before continuing with impression procedures for the master cast.

Answer 22

The specific criteria for satisfying an objective

Question 23

The specific criteria for satisfying this objective are as follows:

1. Removal and control of _________________ along with reduction or elimination of bleeding on probing.
2. Elimination of, or reduction in, the _______________ with the establishment of healthy gingival sulci whenever possible.
3. Establishment of _________________ and tooth stability.
4. Development of a personalized _______________ and a definitive maintenance schedule.

Answer 23

all etiologic factors contributing to periodontal disease
pocket depth of all pockets
functional atraumatic occlusal relationships
plaque control program

Question 24

 The first phase is considered ____________ or initial therapy because the objective is to essentially eliminate or reduce local causative factors before any periodontal surgical procedures are accomplished:

Answer 24

disease control

Question 25

accomplished:
 Procedures like:
o __________ instruction
o _____________ and polishing
o ______________, occlusal adjustment, and temporary splinting, if indicated.
o In many instances, carefully performed scaling and root planing combined with excellent patient compliance may negate the need for periodontal surgery.

Answer 25

Oral hygiene
Scaling and root planing
Endodontics,
scaling and root planing combined with excellent patient compliance

Question 26

 Patients who require conditioning treatment often demonstrate the following symptoms:
(1) ________________ of the mucosa covering denture-bearing areas.
(2) ___________________, such as incisive papillae, rugae, and retromolar pads.
(3) _____________ in residual ridge areas, the tongue, and the cheeks and lips.

Answer 26

Inflammation and irritation
Distortion of normal anatomic structures
A burning sensation

Question 27

Relieving the tissue side of denture bases sufficiently (____) to provide space for even thickness and distribution of conditioning material.

Answer 27

2 mm

Question 28

• _________ types of crowns are used on canines and or premolars.
• ___________ are usually indicated on molars.

Answer 28

Esthetic veneer
Crowns

Question 29

• The most vulnerable area on the abutment tooth is the ____________, which lies beneath the minor connector of the removable partial denture framework and is therefore subject to accumulation of debris in an area most susceptible to caries.

Answer 29

proximal gingival area

Question 30

• Modern indirect techniques permit the contouring of wax. patterns on the master cast with the aid of the_____________.

Answer 30

surveyor blade

Question 31

• Generally, a small amount of undercut __________ or less sufficient for retentive purposes.

Answer 31

0.02 inch