MDA Chapter 52 Removable Prosthodontics

Alveoplasty

the surgical shaping and smoothing of the margins of the tooth socket after extraction of the tooth, generally in preparation for the placement of a prosthesis

Baseplate

a temporary resin form representing the base of a denture used to help establish jaw relationships and the arrangement of teeth

Border molding

process of using fingers to contour a closer adaption of the margins of an impression while still in the mouth

Centric Relation

having the jaws in a position that produces a centrally related occlusion

Connector

piece of metal that joins the various parts of a partial denture; also called a bar.

Coping

Thin metal covering or cap placed over a prepared tooth

Edentulous

To be without teeth

Festooning

the process of carving the base material of a denture or denture pattern to simulate the contours of the natural tissues

Flange

Parts of a full or partial denture that extend from the teeth to the border of the denture

Framework

Metal skeleton of a removable partial denture

Full denture

prosthesis that replaces all of the teeth in one arch

immediate denture

temporary denture placed after the extraction of anterior teeth

Lateral excursion

Sliding the position of the mandible to the lef or right of the centric position

Mastication

Chewing

Occlusal rim

rim built on the baseplate to register vertical dimension and occlusal relationship of the mandibular and maxillary arches

Overdenture

full denture supported by two or more remaining natural teeth

Partial Denture

removable prosthesis that replaces teeth within the same arch

Post dam

seal in back of a full or partial denture that holds it in place; also called posterior palatal seal

Pressure points

specific areas in the mouth where a removable prosthesis may rub or apply more pressure

Protrusion

Position of the mandible placed forward as related to the maxilla

Rebasing

procedure to replace the entire denture base material on an existing prosthesis

Relining

Procedure used to resurface the tissue side of a partial or full denture so that it fits more accuarately

Resorption

When teeth have been extracted the alveolar bone no longer has a purpose and the body will resorb it.

Rest

metal projection on or near the retainer of a partial denture

Retainer

Device used to hold attachments and abutments of a removable prosthesis in place.

Retrusion

position of the mandible posterior from the centric position as related to the maxilla

Template

Clear plastic tray that represents the alveolus as it should appear after theeth have been extracted

Tuberosity

Rounded bony protrusion behind your last molar in the maxilla

Removable Prosthodontics

The dental specialty in whic missing teeth are replaced with a prosthesis that the patient can place in and take out of the mouth freely.

Removable partial denture and removable full deture

What are the two major types of removable posthetics avaliable?

natural dentition that is being replaced

The dentist must advise patients who are considering a removable prosthesis that it will never function as well as the ____________________, regardless of how well it is constructed and fits.

physical and mental health, motivation, age, occupation, and dietary habits, as well as social and aconomic factors.

Although extraoral factors are usually beyond the control of the dentist, they cannot be ignored. What do these factors include?

Patients physical heatlth

Certain physical conditions, such as diabetes, afect the ability of the tissues to tolerate the pressure of a removable prosthesis. Also, the patient who is in poor health may be unable to cope during the fabrication of a new prosthesis or unable to adapt

mental health

individiual with poor ____________ may be irritated by and overl concerned about the denture in their mouth. Patients with severe mental disability or mental decline may not be able to keep the appliance in place or maintain adequate oral hygiene.

Patient motivation

Occasionally, a patient's major motive for having teeth extracted and replaced with a prosthesisis for esthetic reasons, that is, only to improve their appearance. The dentist should explore all acceptable alternative treatment options before giving serio

Age

A prostheis for a young person must be designed to allow for growth and accommodate for new teeth as they erupt. If the patient is very active or plays contact sports, the strengh of the appliance is also an important factor. A different challenege is fou

Dietary habits

Healthy tissue is an important aspect of removable prosthodontic success. Patients with poor nutritional habits may have poor tissue response to the prosthesis, whiwch could affect the overall tolerance and comfort of the prosthesis.

Social and economic factors

Patients' attitude about their oral health and appearnce will help them decide if dentures are important or not. The ability to pay for the treatment is a major economic factor. You can actually find "denture clinics" or "mail order clinics," which cater

Occupation

patients whose daily activites involve "meeting the public" are concerned about the possible change in their appearance during or after the transition to partail or full dentures. Appointments for surgery and the delivery of the prosthesis should be sched

tissues

The condition of the patients ____ in the mouth is a key factor in determining whether a removable partial or a complete denture can be reccommended.

Removable pratial denture

Recieves its support and retention from the underlying tissues and remaining teeth that serve as abutments. This type of prosthesis is designed to distribue th eforces of mastication between these abutments and supporting tissues.

A full denture supported by two or more remaining natural teeth

What is an overdenture?

a seal in back of a full or a partial denture that holds it in place

What is a post dam?

a procedure to resurface the tissue side of a partial or full denture so that it fits more accurately

What is relining?

a procedure that replaces the entire denture base metal material on an exsisting prosthesis

What is rebasing?

The parts of a full or partial denture that extend from the teeth to the border of the denture

What is a flange?

Without teeth

What does edentulous mean?

Chewing

What does mastication mean?

a position of the mandible placed forward as related to the maxilla

What is a protrusion?

A position of the mandible posterior from the centric position as related to the maxilla

What is retrusion?

having the jaws in a position that produces a centrally related occlusion.

What is centric relation?

Physical health

What is the first example of the extraoral factors that influence the choice of a removable prosthesis?

tori

What is the term used to describe abnormal growths of bone in a specific area of the tooth?

Mastication

What is the term used to describe chewing?

retainer

Which component of the partial denture is known as a clasp?

third molars

Which teeth are not included on a full denture?

edentulous tray

What type of impression tray is used to take the preliminary impression for a full denture?

immediate denture

What is the term for a prosthesis that is placed just after extracions?

relining

What is the term for placing a new layer of denture resin over the tissue surface of the prosthesis?

rebasing

What is the term for the replacement of a denture base?

partial

a removable prosthesis that replaces on or more teeth

improve appearance and build confidence

how can a person's occupation affect his or her choice of a removable prosthesis?

Increase

How could the presence of a new prosthesis affect the flow of saliva?

Mastication, for a better fit

What is the importance for an alveolar ridge to be evenly contoured to affect the way a removable prosthesis fits?

Clenching, grinding, mouth breathing

What oral habits can affect the choice of a removable prosthesis?

framework

What is the metal skeleton of a partial called?

Clasp

What is a retainer on a partial also called?

rests

What components of a partial controls the way it is seated in the mouth?

elastomeric

What impression material is commonly used for taking a final impression for a partial?

wax

What dental material does the laboratory use to set the teeth for the try-in appointmentfor a denture?

post dam

What is the suction seal that is created between the denture and the mouth?

border molding

What technique does the dentist use to modify the borders of an impression?

the portion of the teeth showing when a patient smiles

What is a "smile-line?

centric relation, protrusion, retrusion, and lateral excursion

Which postions of the jaw does the dentist use to modify the borders of an impression?

After extraction of the anterior teeth

When is an immediate denture most commonly used?

a few months

What is the normal length of time for an immediate denture to be worn?

teeth, oral mucosa, and implants

How is an overdenture supported in the mouth?

relining

What is the term used for placing a new layer of resin over the tissue surface of a prosthesis?

dental lab technician

who performs a complicated denture repair involving the replacement of teeth or a fracture in the framework?

major connector

the piece of rigid metal that joins the right-and left quadrant framework of the partial denture.

musculature, salivary flow, residual alveolar ridge, oral mucosa, oral habits, tori

What intraoral factors must must considered before placing of a removable prosthodontic?

1. physical health 2. mental health 3. patient motivation 4. age 5. dietary habits 6. social and economic factors 7. occupation

What is the order of checking extraoral factors for prosthodontics?

palatal connector

What does a maxillary partial denture have?

lingual connector

What does the mandibular partial denture have?

stress breaker

A metal device built into a partial denture design to protect the abutment teeth from excessive occlusal loads and stress during mastication.

minor connector

Links the major connector to the base and other areas, such as rests and clasps.

I-bar retainer or i-bar clasp

approaches the tooth in a straight line from the apical direction and extends upwards against the tooth

Circumferential retainer, or c-clasp

Originates at the occlusal surface of the tooth and extends downward, so that it partially encircles the tooth.

Occlusal rest

used on the occlusal surface of the tooth. This placement minimizes trauma to the tooth by transmitting stress along the long axis of the tooth.

Lingual rest

placed of the cingulum of the lingual surface of the tooth, where support is good but visibility is lacking.

lingual, and occlusal

What are the two most common types of rests?

five

how many appointments for a partial denture?

records

What is the first appointment for a partial denture for?

preparation

What is the second appointment for a partial denture for?

try-in

What is the third appointment for a partial denture for?

Delivery

What is the fourth appointment for a partial for?

Postdelivery check

What is the fifth appointment for a partial denture for?

base, flange, post dam, and artifical teeth

What are the components for a full denture?

Reline resurfaces rebase replaces

What is the difference between relining and rebasing?

to fit properly and to support chewing

Why is it important that the alvelor ridge be evenly contoured for a removable prosthesis?

rest

What component of a partial denture controls the way it is seated in the mouth?

28, 14 per arch

how many teeth are included in a fullset of detures?

after the extraction of a patient's remaining anterior teeth

When is an immediate denture used?