(Space, denture, teeth)

Exercise 12. Tell in detail about:

1. a removable partial denture

2. missing teeth

Exercise 13. Make a summary of the text.

Part II a fixed partial denture pre-text assignments

Exercise 1. Practice pronunciation:

adjacent [ə’deis(ə)nt]

augment [‘ב:gmənt]

graft [gra:ft]

mesial [‘mi:ziəl]

fluoride [‘fləraid]

Exercise 2. Active vocabulary:

retainer кламер

graft імпантат

hinder ставати завадою, перешкодою

pontic тіло мостовидного протезу

gross великий

adjacent сміжний, сусідній

overlap частково перекривати

augment зрощення, збільшення, поширення

span ділянка, проміжок

sound здоровий, непошкоджений

Exercise 3. Read the words and word combinations and translate them.

Edentulous span, recurrent caries, moisture, the resin-bonded fixed partial denture, fluoride application, standard pontic form, deep vertical overlap, defect-free adjacent teeth, periodontally sound

Exercise 4.Read the text and translate it:

A fixed partial denture

When a missing tooth is to be replaced, a fixed partial denture is preferred by the majority of patients. The usual configuration for a fixed partial denture utilizes an abutment tooth on each end of the edentulous space to support the prosthesis. If the abutment teeth are periodontally sound, the edentulous span is short and straight, and the retainers are well designed and executed, the fixed partial denture can be expected to provide a long life of function for the patient. Several factors have an influence on the decision whether to fabricate a fixed partial denture, what teeth to use as abutments, and what retainer designs to use.

There should be no gross soft tissue defect in the edentulous ridge. If there is, it may be possible to augment the ridge with grafts to enable the construction of a fixed prosthesis. This treatment is reserved for patients who are both highly motivated and able to afford this special procedure. If this is not the case, a removable partial denture should be considered.

A dry mouth creates a poor environment for a fixed partial denture. The margins of the retainers will be at great risk from recurrent caries, limiting the life span of the prosthesis. However, an absence of moisture in the mouth also will hinder the successful wearing of a removable partial denture. In either case, the patient must be made aware of the high risk involved. The risk may be minimized through home fluoride application and frequent recall, but it cannot be eliminated.

Resin-Bonded Tooth-Supported Fixed Partial Denture

The resin-bonded fixed partial denture is a conservative restoration that is reserved for use on defect-free abutments in situations where there is a single missing tooth, usually an incisor or premolar. A single molar can be replaced by this type of prosthesis if the patient's muscles of mastication are not too well developed. Thus assuring that a minimum load will be placed on the retainers. The resin-bonded fixed partial denture requires an abutment both mesial and distal to the edentulous space.

This prosthesis utilized a standard pontic form. It is especially usefel in younger patients whose immature teeth with large pulps are at risk for endodontic –free abutment preparations.

The resin-bonded prosthesis cannot be used for replacing missing anterior teeth where there is a deep vertical overlap.