insertion & post- insertion trouble shootings for cd &...
TRANSCRIPT
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Insertion & Post-Insertion Trouble Shootings for CD & RPD
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Patient Demographics
Will there be a need for complete dentures in
2020?
Complete dentures patients will increase from
33.6 million adults in 1991 to 37.9 million adults in
2020.
The 10% decline in edentulism experienced each
decade for the past 30 years will be more than
offset by the 71% increase in the adult population
older than 55 years.
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If it hurts - GRIND
If its loose - RELINE
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Lesson
Spend more time thinking, less time grinding
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Five Principles For Troubleshooting
1. Establish differential diagnosis
2. Identify variations from normal
3. Have patient demonstrate problems
4. Always use indicating medium when adjusting
5. Have patient rate improvement after
adjustment
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Principal 1 Establish a Differential Diagnosis
Form a list of possible causes
Try to prove problem is not caused by “X” by eliminating possible causes
Expect resolution within 10-14 days
If no resolution, eliminate something else
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Principle 1: Differential Diagnosis
Prioritize from common to rare
Eliminate common etiologies first, because:
Common things occur
commonly
Rare entities occur rarely
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Differential Diagnosis: CD or RPD Pain
Occlusion Remount, Articulating
Paper, Adjust
Denture Base PIP, Adjust
Vertical Dimension Time to Adapt,
Reset Teeth
Infection
Systemic Disease
Tests, Referrals,
Medications
Allergy Patch Tests, Referrals,
Change Materials
Attempt to
eliminate
problem.
Re-evaluate
results in
10-14 days
Occlusion Remount, Articulating
Paper, Adjust
Denture Base PIP, Adjust
Vertical Dimension Time to Adapt,
Reset Teeth
Infection
Systemic Disease
Tests, Referrals,
Medications
Allergy Patch Tests, Referrals,
Change Materials
Attempt to
eliminate
problem.
Re-evaluate
results in
10-14 days
Occlusion Remount, Articulating
Paper, Adjust
Attempt to
eliminate
problem.
Re-evaluate
results in
10-14 days
Denture Base
PIP, Adjust
Vertical Dimension Time to Adapt,
Reset Teeth
Infection Tests, Referrals,
Medications Systemic Disease
Allergy Patch Tests, Referrals,
Change Materials
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Principles of Diagnosis
Don’t limit list too early in diagnosis
Keep an open mind
Revisit possible causes when contradictory
evidence is found
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Information Gathering
Chief Complaint
History of C.C.
History
Medical
Dental
Clinical Exam
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Gathering Information
Ask open ended questions:
“How does that feel?”
Not
“Does that feel better?”
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History of Chief Complaint Where?
Have patient point to problem
Partially ignore patient’s position
Dentist locate with stick, instrument or paste
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History of Chief Complaint When?
Chewing only - Occlusion
Gets worse throughout day - Occlusion
When first insert dentures - Denture Base
Pressure on 1st molars - Denture Base
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History of Chief Complaint Details
How long?
• does it last since it began?
Anything makes it better/worse?
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Dental and Medical History
Often inadequately investigated
Spend more time talking to narrow possibilities
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Principle 2: Identify Variations from Normal : Tissues & Dentures
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Loose Denture: Prominent Midline Fissure, Soft Palate
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Dealing with Variations From Normal
If denture alone is not normal - correct
If anatomy/patient not normal, vary method to address variation
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Principle 3: Have Patient Demonstrate Problem
Eliminate cause - should resolve in 10-14 days
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Principle 4: Always Use Indicating Media
Never adjust without locating exact position of the problem
Use paste, indelible stick, or articulating paper
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Principle 5: Rate Improvement
After adjustment
Ask patient to rate improvement
0%-100%
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Principle
Always have the patient rate improvement (0-100) after
adjustment. If below 90%, more diagnosis/adjustment is required
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Principle 5:
Rate Improvement
Better when:
Sign of relief
‘Yes!’
‘You got it’
100% Perfect Now
0% Still Same, Can’t Tell
50% Better, but still not right
75% Feels a lot better
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Denture Pain CD & RPD
Occlusion
Denture base (fit & contour)
Vertical dimension
Infection
Systemic disease/condition
Allergy (rare)
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Most Overlooked Problem
Occlusion Don’t want the problem to be
occlusion - so we look for other causes
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Occlusion
Takes time to remount (prep time)
Reduces adjustment time
Net savings of time
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Pain: Occlusion Diagnostic Strategies
Eliminate as potential cause
Remount denture on an articulator
Centric relation & protrusive records
Mark centric & excursive contacts, adjust
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Don’t Adjust Occlusion Intraorally
Contact on inclines can cause denture movement
May cause pain, or reflex avoidance
May make interference difficult to mark
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Adjusting Occlusion Intra-Orally
Net Result
Can’t see real Problem
Can’t eliminate the Problem
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Adjusting Occlusion
Use an articulator
Eliminates denture movement
Can visualize interferences easily
Saves time removing & replacing dentures
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Pain: Occlusion Dental History
No pain when press firmly on1st molars
Only when chewing
Gets worse with chewing
Gets worse during the day
May have to remove late in day
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Pain: Occlusion Clinical Exam
Patient demonstrates problem by biting where pain occurs
• Ulcer or sore spots on sides of ridges
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Pain: Occlusion Clinical Exam
Occlusal contact not centered over ridge
Tilting forces cause displacement, abrasion, ulceration
Worse if xerostomia, malnourished, debilitated or poor adaptability
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Pain: Occlusion Avoid Contact on Inclines
• No teeth set over
ascending portion of
ramus
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Clinically
Drop 2nd premolar if necessary
Ensures posterior contacts not too distant
Avoids ascending portion of ridge
Ensures adequate occlusal table (maintains 2 molars)
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Clinically
Place load over the mandibular ridge
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Pain: Occlusion Avoid Contact on Inclines
• No contact on
inclines of denture
bases
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Pain: Occlusion Clinical Exam
Severe A-P Curve
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Pain: Occlusion Clinical Exam
Minimal overjet (horizontal) of anterior and/or posterior teeth
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Pain: Occlusion Clinical Exam
Severe disclusion of posterior teeth in excursions (lack of balance)
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Avoid Setting Teeth in Tongue Space
Tongue
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Denture Pain CD & RPD
• Occlusion
• Denture base (fit & contour)
• Vertical dimension
• Infection
• Systemic disease/condition
• Allergy (rare)
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Pain: Denture Base Dental History
Firm pressure over molars - pain
Problem starts in AM
tight, sore
Discomfort when not chewing
Often not progressive through day
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Pain: Denture Base Clinical Exam
Discrete area of inflammation or ulceration
Similar to appearance of occlusal problems
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Indicating Media
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Applying Pressure Indicating Paste
Dry denture
Thin coat with stiff brush
Leave streaks
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More the colour of indicating medium than
denture
Correct Amount
with Streaks
Insufficient
Amount
Too Much
w/o Streaks
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Prior to Placement
Ensure damp mucosa
Spray surface of PIP with air/water
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Seat Denture Firmly
Avoid lips/ridge when inserting
Pressure over first molars (not palate)
Remove from oral cavity by breaking seal - finger pushing height of vestibule
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Denture Base Adjustment
Relieve pressure spots - large acrylic burs
Take care with undercuts Looks like burn-through
May not require adjustment
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Repeat Until Denture Fully Seats
Relatively uniform contact
Minimal streaks
No gross burn-through
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Visually Check Peripheries
Seat denture & border mold
Flanges should fill vestibule but not be dislodged by manipulation
If denture dislodges, use PIP to adjust
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Pressure Pastes: Goal: Relatively Even, Minimal Streaks
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Buccal
Attachments
To Hyoid
Mylohyoid
Ridge
X-section through
Mandibular ridge
in 2nd Molar region
Avoid Impinging on the Mylohyoid Ridge
A problem if prominent or sharp
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Pain: Denture Base Clinical Exam
Expect some burnthrough close to undercuts
Denture should seat easily, otherwise adjust undercut
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Pain: Denture Base Retromylohyoid Overextension
Sore throat
Denture moves when swallow
From retromolar pad, flange should go straight down or angle forward, never backward
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Pain: Denture Base Severe Tissue Undercuts
If the ridge is severely undercut, the flange cannot be placed to the depth of the vestibule, otherwise the denture will not seat or ulceration will occur
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Pain: Denture Base
Hamular Notches
Commonly sharp flange
Sometimes long
Use PIP
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Pain: Denture Base Clinical Exam
Indelible sticks : show position but not degree of problem
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Pain: Denture Base
Labial frenum
Should be thin and deep, not broad
Round internal and external angles
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Denture Pain CD & RPD
• Occlusion
• Denture base (fit & contour)
• Vertical dimension
• Infection
• Systemic disease/condition
• Allergy (rare)
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Denture Pain: Occlusal Vertical Dimension (OVD)
Excessive OVD • Sore over entire ridge • Gets worse during day • Muscle/joint pain • Dentures ‘click’ • Esthetic complaints: too full
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Denture Pain: Occlusal Vertical Dimension (OVD)
Insufficient OVD
• lack of chewing power
• minimal ridge discomfort
• angular chelitis
• esthetic complaints: chin prominent
poor lip support
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Denture Pain: Occlusal Vertical Dimension (OVD)
Solution:
Check physiologic rest position and phonetics carefully to confirm
Provide time to ensure no adaptation
Reset teeth as adjustment alone usually not possible
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Denture Pain CD & RPD
• Occlusion
• Denture base (fit & contour)
• Vertical dimension
• Infection
• Systemic disease/condition
• Allergy (rare)
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Denture Pain: Infection
Poor denture hygiene
Localized (lack of tissue contact)
Generalized
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Denture Pain: Infection: Localized
Porous denture surface
Palatal relief chamber
Voids from chairside relines
If denture cleanser not rinsed, also get inflammation
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Denture Pain: Infection: Generalized
Patient debilitated diabetes, leukemia, AIDS, etc.
Drugs chemotherapy, steroids, antibiotics
Poor nutrition Xerostomia
drug/radiation induced systemic condition (Sjogren’s)
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Denture Pain: Infection: Generalized
Denture Stomatitis
(Denture Sore Mouth)
Usually Candida albicans
Bright red, often no white plaques
Usually maxilla
Generalized pain
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Denture Stomatitis Treatment
1. Remove source of infection
Tissue rest
Remove surface acrylic, soft reline
Reline frequently
Clean with: 2% Sodium Hypochlorite
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Denture Stomatitis Treatment
Remove gross calculus or debris (scalers, lathe wheel)
Clean denture in ultrasonic
Soak in sodium hypochlorite redness disappears
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Denture Stomatitis Treatment
2. Eliminate infection from tissues Fluconazole 100mg
200mg on 1st day then 100mg, once a day
minimum of 2 weeks to prevent relapse
Topical Nystatin ointment (less effective) Nyaderm (15, 30 g tubes , 454g jar) Apply 1-4 x per day
Oral suspension Nyaderm (24, 48 ml bottle)
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Denture Stomatitis Treatment
Sometimes very persistant
May need to change drug
May need to use systemic medication
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Denture Pain: Infection: Generalized
Before Medicating:
Improve hygiene
Consult: present medications
Address nutrition
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Drug Induced Xerostomia
Antiarrhythmics, Anticonvulsants, Antidepressants, Antihistamines, Diuretics, Hypotensives, Muscle Relaxants, Narcotics and others
Health history is important
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Importance of Saliva
Retention
Lubrication
Removal of debris
Anti-bacterial, -fungal, -viral
Taste & digestion
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Burning Mouth Syndrome
Burning mouth (palate)
Burning tongue, lips
No clear cut cause
No uniformly successful tx
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Denture Pain CD & RPD
• Occlusion
• Denture base (fit & contour)
• Vertical dimension
• Infection
• Systemic disease/condition
• Allergy (rare)
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Systemic Disease or Condition
Comfort/Retention
Diabetes, Ectodermal Dysplasia, Sjogren’s Syndrome, Neoplasm, Vesiculo-Bullous Diseases, Sexually
Transmitted Disease (STD), etc.
Coordination
Stroke, Muscle or Neurologic Disorders
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Denture Pain CD & RPD
• Occlusion
• Denture base (fit & contour)
• Vertical dimension
• Infection
• Systemic disease/condition
• Allergy (rare)
![Page 81: Insertion & Post- Insertion Trouble Shootings for CD & …drrolashadid.weebly.com/uploads/1/4/9/4/14946992/lecture...Will there be a need for complete dentures in 2020? Complete dentures](https://reader031.vdocument.in/reader031/viewer/2022022006/5abf65e27f8b9ab02d8e1d71/html5/thumbnails/81.jpg)
Denture Base Allergies
Extremely rare Generalized reaction,
wherever base touches tissues
Usually reaction to free monomer leaching out
Patch test, as last resort
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Denture Base Allergies
Use porcelain teeth
Other material for base
Triad - Urethane dimethacrylate
Non-Nickel containing framework alloy
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Denture Looseness CD & RPD
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Denture Looseness CD & RPD
Occlusion
Denture base (fit & contour)
Poor anatomy
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Denture Looseness CD & RPD: Occlusion
Typical History
Adequate retention initially
Gets worse with time
Clinically:
No discomfort when press firmly on 1st molars
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Denture Looseness CD & RPD: Occlusion
Perpetually Loose Maxillary Denture
• Heavy anterior interferences can cause loosening at posterior
• Tuberosity mucosa grows into space
• Space develops under midline of denture base
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Tuberosity
Denture Looseness CD & RPD: Occlusion
Tilting Growth Loss of retention
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Inclined
Residual Ridge
Lip
Denture Looseness CD & RPD: Occlusion
Incisors placed too far labially
Denture displaces lingually.
Inclined ridge provides no resistance.
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Denture Looseness CD & RPD: Occlusion
Tilting/jiggling caused by:
• Contacts not centered over ridge
• Contacts on inclined portion of ridge
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Denture Looseness CD & RPD: Occlusion
Check centric position (articulating paper)
even, stable contacts both sides
stop patient upon initial contact
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Denture Looseness CD & RPD
Occlusion
Denture base (fit & contour)
Poor anatomy
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Denture Looseness CD & RPD: Denture Base
Typical History
Loose/discomfort immediately on insertion
Clinically:
Discomfort when press firmly on 1st molars
Pressure up/outward from lingual of canine causes looseness
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Denture Looseness Denture Base (Mandibular lingual flange too thick)
Tongue
Flange bulges into tongue space, lifts denture
during function.
![Page 94: Insertion & Post- Insertion Trouble Shootings for CD & …drrolashadid.weebly.com/uploads/1/4/9/4/14946992/lecture...Will there be a need for complete dentures in 2020? Complete dentures](https://reader031.vdocument.in/reader031/viewer/2022022006/5abf65e27f8b9ab02d8e1d71/html5/thumbnails/94.jpg)
Denture Looseness CD & RPD: Denture Base
Short flange
• PIP streaks
• Looks short of vestibule
• Often displaces easily
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Denture Looseness CD & RPD: Denture Base
Long flange • PIP burnthrough • Retentive until speaking,
eating • Watch when seating
denture Flange touches vestibular
depth, denture continues to seat
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Denture Looseness CD & RPD: Denture Base
If flange too thick Seal may be maintained at rest Pulls during function - drops
If flange is short or long Displacement as lips or cheeks move Allows air to break vestibular seal
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Denture Looseness CD & RPD: Denture Base
Principle
Always have the patient demonstrate how a denture
loosens
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Denture Looseness CD & RPD: Denture Base
Lack of post dam
• Test hypothesis: add compound/functional wax
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Denture Looseness CD & RPD: Denture Base
Poor base adaptation
Fulcrum on bony structures
Test hypothesis: PIP
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Denture Looseness CD & RPD: Denture Base
Periphery terminates on bony structures
Hard palate
Zygoma
External oblique ridge
Before retromolar pad
No seal, discomfort
Eventual resorption
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Denture Looseness CD & RPD: Denture Base
Principle
Denture peripheries always terminate on displaceable soft tissues
Retromolar pads, Vestibular tissues, Vibrating line (nonmoveble soft palate), Hamular notches
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Denture Looseness Denture Base: Coronoid Interference
Thick flange in retrozygomal area
Coronoid gets closer to tuberosity as patient opens or moves jaw to side
Dislodges maxillary denture
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Denture Looseness Denture Base: Pterygomandibular Raphe
Raphe from area of hamular notch
Very tight in some patients
Easily displaceable, but raphe can displace Mx denture when opening wide
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Denture Looseness Denture Base: Palatal Cleft
In some patients midline soft palate fissure
Allows air to leak under denture
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Denture Looseness CD & RPD
Occlusion
Denture base (fit & contour)
Poor anatomy
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Difficult Denture Patients
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Difficult Denture Patients
Anatomic Problem
Diagnosis Problem
Adaptive Problem
Psychologic Problem
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Difficult Denture Patients
Principle If you can’t determine the problem using
indicating medium:
1. Tell the patient
2. Don’t adjust
3. Refer
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Difficult Denture Patients
Principle
Never pretend to adjust a denture
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Difficult Denture Patients Adaptive Problem
Elderly take more time to adapt
More teeth missing, less adaptation (loss of PDM receptors)
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Difficult Denture Patients Adaptive Problem
Denture may be the cause of the problem
Patient response may also be part of the problem
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Adaptive, Psychologic Problem Prevention: Interview
1. Recognize & Acknowledge Problem
Open ended questions
Let patient identify problem
If you identify the wrong problem - fail
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Adaptive, Psychologic Problem Prevention: Interview
2. Explore and Identify Problems
Let the patient talk (silence)
Watch for nonverbal clues
Short verbal clues may be significant
(“...and I guess the appearance”)
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Adaptive, Psychologic Problem Prevention: Interview
3. Interpret & Explain Problems
Advise patient of your view
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Adaptive, Psychologic Problem Prevention: Interview
4. Offer a Solution
If chance denture will not be a success, state at outset
If sense trouble, refer or address immediately
If suggest a therapist, patient will run or say yes
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Adaptive, Psychologic Problem Prevention: Interview
Remember: Most patients are not problem patients
80-85% are satisfied
Better adaptation than eyeglass wearers
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Adaptive, Psychologic Problem
Rule out objective findings
Chart findings objectively
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Overview
Deal with denture problems systematically
Use a differential diagnosis
Address probable causes until problem eliminated
If can’t identify problem, refer
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References Dalhousie continual education