RPD insertion Flashcards
OBJECTIVE OF THE INSERTION
APPOINTMENT
➢ TO FIT?
➢ TO CORRECT?
➢ TO ADJUST?
➢ TO INSTRUCT?
➢ TO FIT THE DENTURE BASE TO THE EDENTOLOUS RIDGE
➢ TO CORRECT THE OCCLUSAL DISCREPANCIES
➢ TO ADJUST RETENTIVE CLASPS IN NECESSARY
➢ TO INSTRUCT THE PATIENT IN HOME CARE
➢ THE DENTURE BASE WILL USUALLY EXHIBIT HEAVY CONTACT WITH:
AND LIGHT OR NO CONTACT WITH THE:
➢ THE DENTURE BASE WILL USUALLY EXHIBIT HEAVY CONTACT WITH THE
LATERAL WALLS, BOTH BUCCAL AND LINGUAL OR PAPATAL, OF THE RIDGE
AND LIGHT OR NO CONTACT WITH THE RIDGE CREST.
THE MOST FREQUENTLY OBSERVED AREAS of improper fit
➢UNDERCUTS BUCCAL TO THE EDENTULOUS RIDGE IN THE
MANDIBULAR PREMOLAR
➢MAXILLARY TUBEROSITY AREA
➢MYLOHYOID AREA
what can we use to look for interferences
PIP
➢DENTURE BASE FLANGE LENGTH CONTRIBUTES TO
* RESISTANCE TO:
* A MAJOR SHARE OF:
- RESISTANCE TO HORIZONTAL OR LATERAL DISPLACEMENT OF THE DENTURE
- A MAJOR SHARE OF VERTICAL SUPPORT FOR THE PARTIAL DENTURE
when to clinically remount and when not to for occ discrepancies
in class 3 you can correct intraorally and for any distal ext case or long spane class 4 req clinical remount
natural tooth contacts maintained?
IT IS IMPORTANT THAT TEETH WHICH CONTACT WITHOUT THE PROSTHESIS IN PLACE CONTINUE TO DO SO WITH THE PROSTHESIS IN PLACE.
clinical remount procedure
- facebow preservation
- pick up impression
- block out undercuts
- remount with intraocc record
selective grinding of cusps
➢THE CUSP TIPS SHOULD NOT BE RELIEVED ARBITRARY.
➢BY ALTERING THE INCLINE OF A CUSP, INTERFERENCES
CAN BE ELIMINATED WITHOUT BASICALLY CHANGING
THE CUSP HEIGHT.
retention level at appt? tool for half round? increments?
adjusting the retentive clasp
➢ AS A GENERAL RULE, AT THE TIME OF INSERTION SLIGHTLY LESS THAN MAXIMUM RETENTION SHOULD BE USED.
➢ ONLY THE NO. 139 PLIER SHOULD BE USED WHEN ADJUSTING A HALF-ROUND, CAST CIRCUMFERENTIAL
CLASP
Clasps should be adjusted in small
increments. Excessively bending a
clasp in one direction only will lead
to accelerated fatigue and failure of
the clasp.
home care instruction for pts
brush denture with soap after eating
how long should RPD be removed per day? placed where?
8hrs, soaked to prevent distortion
pts should never place RPD in solutions containing:
ADVISE THE PATIENT TO NEVER SOAK THE RPD IN ANY CLEANER CONTAINING CHROLINE (BLEACH) THIS WILL CAUSE THE METAL TO CORRODE AND MAKE THE FRAMEWORK MORE BRITTLE.
pt removal of rpd technique
Patient should grasp acrylic resin denture bases on each side of the arch and carefully withdraw the removable
partial denture from the mouth.
adjustment appt time frame
➢PATIENTS WILL BE SEEN AT 24 HOURS AND 1 WEEK AFTER INSERTION.
umkc is 1 and 3 days
RPD insertion before adjjustment appt
should be inserted for 4-5 hrs prior to visualize problem
common pt complaints
➢PROBLEMS WITH PHONETICS
➢CHEEK OR TONGUE BITING
➢DIFFICULTY IN CHEWING
➢LOOSE DENTURE
➢GAGGING
potential causes of phonetic issues
IMPROPER PLACEMENT OF THE PROSTHETIC ANTERIOR TEETH OR CHANGES IN THE CONTOUR OF THE ANTERIOR PALATE
IMPROPER PLACEMENT OF MAXILLARY AND MANDIBULAR PREMOLARS
IF POSITIONED TOO FAR LINGUALLY:
THE ACTION OF THE TONGUE MAYBE LIMITED AND SPEECH MAY BE AFFECTED
problem and solution
teeth positioned too far buccally
WHISTLING OR SLURRING OF THE SPEECH MAY OCCUR.
IF THIS ERROR HAPPENS, SOFT UTILITY WAX ADAPTED TO THE LINGUAL SURFACES OF THE PREMOLAR TEETH
SHOULD DECREASE THE ESCAPE OF AIR AND THE WHISTLING OR SLURRING EFFECT.
how does cheek biting occur
CAUSED BY INSUFFICIENT HORIZONTAL OVERLAP BETWEEN MAXILLARY AND MANDIBULAR TEETH.
solution to cheek biting if teeth correctly positioned
IF ARTIFICIAL TEETH ARE CORRECTLY POSITIONED: ROUND THE
BUCCAL CUSPS OF THE MANDIBULAR POSTERIOR TEETH. THIS ACTION
WILL MOVE THE BUCCAL CUSPS SLIGHTLY LINGUAL, THEREBY
CREATING A GREATER HORIZONTAL OVERLAP.
solution to cheek biting if teeth improperly postioned
remove teeth and reset them
tongue biting caused by
CAUSED BY THE ARTIFICIAL TEETH BEING POSITIONED TOO FAR LINGUALLY AND THERE IS A DECREASE IN THE TONGUE SPACE.
