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level: REPORT 2

Questions and Answers List

level questions: REPORT 2

QuestionAnswer
Three steps are involved in making a denture framework by using relief, blockout ledges, and ready-made pattern formsmaster cast with relief and blockout, complete wax pattern, finished casting returned to master cast
It is essential to the dentist to understand the ____- involved. This enables them to design the RPD ____________ that communicates the desired design and authorizes its ______the quality of the frameworklaboratory procedures; framework, complete a laboratory work authorization; fabrication, and evaluate
_____of the key features required in a completed removable partial denture framework ensure the patient of a chance to ____ with the finished productUnderstanding and evaluation; function comfortably
Preformed plastic patterns- made of ____; they tend to stretch on removal from their backing. Therefore, care must be exercised when one is removing patternssoft plastic material
Preformed plastic patterns - Their use generally requires that ___ be applied first to the investment cast at their area of placementtacky fluid
Freehand waxing, Prepares wax patterns for metallic framework, Bulk form for sprue & vent sprueRPD CASTING WAX
SHEET CASTING WAX: For making pattern of a maxillary major connector, Can also be used in providing the “plate” of a mandibular linguoplate (22-24- gauge sheet waxSmooth Casting Wax
SHEET CASTING WAX: It is used for bases of upper partial dentures, Internal finish lineStippled Casting Wax
PRE-FORMED CASTING WAX: Minimizes modelling time for retention of maxillary partial denture with large saddlesWax Border Strips with Retentions
PRE-FORMED CASTING WAX:can be easily shaped as needed because the size can be varied by trimming the tips of the retentionsWax Border Strips with Retentions
PRE-FORMED CASTING WAX:used in providing a secure attachment of a plastic saddle to the mandibular partial dentureWax Retentions for Mandibular Partial Denture Frame
Wax Grid Retentions for Maxillary Partial Denture Frame: Large grid retention size60 x 42mm
Wax Grid Retentions for Maxillary Partial Denture Frame: diagnonal grid retentions size75 x 150mm
Wax Grid Retentions for Maxillary Partial Denture Frame: grid retentions with holes size70 x 70 mm
Wax Grid Retentions for Maxillary Partial Denture Frame: high level of security in the connection between the resin and the partial denture plateLarge Wax grid retentions
Wax Grid Retentions for Maxillary Partial Denture Frame:offer a very high degree of security in connecting the resin and the dentures.Wax diagonal grid retentions
Wax Grid Retentions for Maxillary Partial Denture Frame: can be used as retentions for partial maxillary dentures and as a reinforcementWax grid retentions with holes
For premolars and molars- provides a firm grip as well as giving the partial denture the necessary stability. It helps to decrease the time for remodeling and wax shapes can be customized by shortening or lengthening themWax Clasp Profiles
WAX PROFILE STICKS:It provides high internal stability and protection against unintentional deformation and constriction.Wax Profiles Assortment
WAX PROFILE STICKS:For customized shaping of the sublingual bar, Freehand waxingWax Profiles Assortment
WAX PROFILE STICKS:for customized shaping of the sublingual barAnatomical Wax Bar Profiles for Lower Jaw Partial Denture Frame
METHODS OF WAXING:A slow method of waxing; No control of uniformityfreehand
METHODS OF WAXING:Faster than freehand, More control of uniformity than freehand, Do not compress patterns with much pressure or the pattern will distortwax patterns
METHODS OF WAXING: Excellent and fast method of waxingplastic patterns
METHODS OF WAXING: Combines the best qualities of freehand, wax patterns and plastic patternscombination
Aids in casting the RPD by acting as an auxiliary channel for metal flowbeading/ bead line
Creates a seal in the mouth by displacing soft tissuebeading/ bead line
Use ___ gauge round wax for all finish linep18
Position lingual to internal lines approximately ____1 - 1.5 mm
lingual plating should be no more than __ mm thick1
what wax to use on outer borders12-gauge 1/2 round
what wax to use on cross struts12-gauge 1/2 round
Cut shoulder of clasp at a __ degree angle45
what method of waxing is used to make rest and minor connectorsfreehand
Occlusal __ should be slightly concave to prevent interference with the opposing cusprest
Minor connector should be approximately ___ thick or as thick as shoulder of clasp1 mm
Junction of minor connector and rest should form a __ degree angle90
what wax is used on major connector for mandibular6-gauge 1/2 pear pattern
MN WAX UP: Cut ends of major connector at __ degree angle45
use __-gauge round wax for all finish lines18
if external finish line is placed directly over the internal finish line, it will cause ___ between the retention grid and the major connectorweak junction
opening that leads from the crucible to the cavity in which the framework is to be cast.sprue channel
have the purpose of leading the molten metal from the crucible into the mold cavitySprues
have the further purpose of providing a reservoir of molten metal from which the casting may draw during solidification, thus preventing porosity caused by shrinkageSprues
Sprues should be large enough that the molten metal in them will not solidify until after the metal in the casting proper has frozen (______ is usually used for multiple spruing of removable partial denture castings).8- to 12-gauge round wax
Sprues should lead into the mold cavity as directly as possible and still permit a configuration that will induce a minimal amount of _____ in the stream of molten metalturbulence
Sprues should leave the ___ from a common point and be attached to the wax pattern at its bulkier sections, that is, no ____ of casting should intervene between two bulky, unsprued portionscrucible; thin sections
For a maxillary framework, multiple ___ sprues or a single main sprue located posteriorly can be used. When a single main sprue is used, additional sprues can feed critical regions for casting completeness8-gauge
Mandibular cast framework with sprue intact, showing three ___ sprues attached to the lingual bar. If one is concerned about completely filling distal extension base minor connectors, ____ sprues can be attached to the minor connector8-gauge; 12-gauge
Two basic types of sprues are used:use of 8- to 12-gauge round wax shapes for main sprues and 12- to 18-gauge round wax shapes for auxiliary spruesMULTIPLE
Two basic types of sprues are used:limited to those maxillary frameworks in which—because of the presence of a palatal plate—it is impossible to locate multiple sprues centrally.SINGLE
Some important points to remember in multiple spruing are as follows: Use a few sprues of _____ rather than several _____.large diameter; smaller sprues
Some important points to remember in multiple spruing are as follows: Keep all sprues as ______ as possibleshort and direct
Some important points to remember in multiple spruing are as follows: Avoid ____ in direction; avoid ____ junctions as much as possibleabrupt changes; T-shaped
Some important points to remember in multiple spruing are as follows: Reinforce all junctions with _____ to prevent constrictions in the sprue channel and to prevent ____sections of investment that might break away and be carried into the castingadditional wax; V-shaped
The investment for a removable partial denture casting consists of two partsThe investment cast on which the pattern is formed; The outer investment surrounding the cast and pattern
The investment must conform accurately to the _____ and must preserve the ______ as a cavity after the pattern itself has been eliminated through _______shape of the pattern; configuration of the pattern; vaporization and oxidation
The technique for applying the outer investment is usually referred to as ________. The cast on which the pattern is formed is part of the investment also.investing the pattern
aka Wax eliminationBURNOUT
The burnout operation served three purposesDrives off moisture in the mold; Vaporizes and thus eliminates the pattern, leaving a cavity in the mold; Expands the mold to compensate for contraction of the metal on cooling
contains the written directions for laboratory procedures to be performed for fabrication of dental restorations.work authorization
they provide a means for increased professional quality assurance and satisfaction in a removable partial denture servicework authorization
similar to granting power of attorney. It grants authority for others to act on the dentist’s behalf and specifically prescribes what is authorized; effective channels of communication.work authorization
Information contained in a work authorization1. The Name and Address of The Dental Laboratory; 2. The Name and Address of The Dentist Who Initiates The Work Authorization; 3. The Identification of The Patient; 4. The Date of Work Authorization; 5. The Desired Completion Date of The Request; 6. Specific Instructions; 7. The Signature of The Dentist; And 8. The Registered License Number of The Dentist
The following four important functions are performed by a work authorization1.It furnishes definite instructions for laboratory procedures to be accomplished and implies an expectation of a level of acceptable quality for the services rendered. 2.It provides a means of protecting the public from the il- legal practice of dentistry. 3.It is a protective legal document for both the dentist and the dental laboratory technician. 4.It completely delineates the responsibilities of the dentist and the dental laboratory technician.
Work Authorization - Characteristics1.A work authorization must be legible, clear, concise, and readily understood. 2.It is sound practice to provide the dental laboratory technician with adequate written instructions for each laboratory service required in the fabrication of a restoration 3.No single work authorization form is adequate to furnish detailed instructions for accomplishing the laboratory phases in the fabrication of removable partial dentures, crowns, and fixed partial dentures, or complete dentures, or for accomplishing orthodontic laboratory procedures.
Work Authorization - Legal Aspects●Made in duplicate ●Retain a copy for a specified period from the date of work authorization ●To substantiate or refute claims and counterclaims that concern the illegal practice of dentistry ●To aid in the settlement of misunderstandings between a dentist and a dental laboratory technician
Modeling frames for lower jaw removable partial denture frameworkWax Retentions for Lower jaw Partial Denture Frame
General request is prefaced by ____ and the specific instructions are ended with _____“please”; “thank you”
Work Authorization - Delineation of Responsibilities● The dentist is responsible for all the phases of removable partial denture service ● Dentists should refrain from imposing responsibilities on auxiliary personnel that legally and morally belong to the dentist. ● A good dental laboratory technician is a valuable team member. ● Team Collaboration and Dentist's Role ● Dentists may delegate the laboratory phase but should fulfill the moral obligation to supervise and direct technical phases.