Sweep 1 Flashcards
YOu want simultaneous contact in
centric and paracentric occlusion. There is smooth contact throughout the jaw movement.
Ability to reproduce CR is a major factor in
choosing cuspal angulation
Lingualized occlusion
max lingual cuspal dominance
Monoplane occlusion
flat
flat plane can be better if CR is hard to attain specifically.
For 30 deg teeth, set to
30, 0 deg teeth set to 0.
You want —– mm space between buccal cusps in lingualized occlusion
1mm
Curve of spee obtained by eleveting
2nd molar by 1.5mm
Monoplane - overjet
1.5-2mm - gives illusion of vertical overlap
Adjustment sequence
Check denture base with pressure-indicating paste
Check denture borders/peripheries with PIP
Occlusal Adjustment
Check Esthetics & Phonetics Polish
Home care instructions
Recall/Follow-up
Maxillary labial frenum:
the most common frenum to become irritated from denture overextension
PIP/Sorensen’s Paste Removal
Gauze, cotton rolls Alcohol-impregnated gauze
• Nothickposterior border - thins
toward soft palate
Prior to obtaining the new centric relation record…
Place two cotton rolls on the first molar denture teeth and have the patient close on these cotton rolls for 5 minutes. This allows optimal denture adaptation and seating the PPS area.
Techniques for recording a new centric relation (CR)
• Ask the patient to “take their jaw back and relax and close very slowly”
• “Curl your tongue tongue all the way back on the roof of your mouth and close
slowly.”
• Keep hands on mandible to ensure no translation during setting
• Hold position until set 1-2 min
VDO:
2-4mmbetween
lipclosureanddenture
teeth touching
• Usephoneticstesttocheckfor
interocclusal distance (count 60s-70s/sibilants [s,sh,j,ch,z]
• No contact of the opposing denture teeth during
speech!
During the production of the Sibilant sounds:
a) The anterior and posterior teeth should not touch
b) Incisors should approach an end to end relationship c) There should be no hissing or air loss
VDO
If decrease is <2 mm a
new interocclusal record must be made at
centric relation at the newly proposed VDO.
To make room for recording material, posterior teeth must be
removed from one arch (usually maxillary).
Posterior Palatal Seal
A raised acrylic resin area at the posterior border of the maxillary denture that enhances retention & maintains the peripheral seal by compensating for:
1) polymerization shrinkage
2) minor denture base functional movements
Post insertion CD problems generally occur in one (or more) of four (4) general categories:
Fit / pressure-related problems
Size / extension-related problems
Occlusion related problems
Random / other
Cheek biting
■ Solution:
increase horizontal overlap by reducing buccal surface of offending mandibular tooth - provides an escape for buccal mucosa
Soreness of the Mucosa at the Periphery of the Denture
Overextension of denture borders
Reduce, round, polish
Soreness of the Mucosa at the Periphery of the Denture
■ Sharp peripheral borders
Round and polish
Soreness of the Mucosa at the Periphery of the Denture
■ Impingement on frenulum
relieve and polish
Cheek, Lip and Tongue Biting
Inadequate horizontal overlap
Round lower buccal cusps or reset teeth
Cheek, Lip and Tongue Biting
■ Insufficient vertical dimension
Remake denture
Cheek, Lip and Tongue Biting
■ Teeth placed too far lingually
Move teeth buccally/remake denture
Cheek, Lip and Tongue Biting
■ Insufficient room posteriorly
between tuberosity and retromolar pad
Reduce acrylic thickness; use metal base if insufficient restorative space; consider surgery
Soreness of Specialized Mucosa of the Tongue
Etiology:Tongue biting due to low occlusal plane, impingement on tongue space
■ Solution: reset teeth/remake denture