مم منار اياد عبد اللطيف Classification of Problems 1 Discomfort Related to impression surface of the denture Related to polished surface of the denture Related to ID: 930614
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Slide1
Post Insertion Problems of Complete Denture
م.م
. منار اياد عبد اللطيف
Slide2Classification of Problems
Slide31) Discomfort
Related
to
impression surface
of the
denture.
Related to
polished surface
of the
denture.
Related to
occlusal surface
of the
denture.
Related to
systemic association.
Slide4Discomfort Related to Impression Surface of
t
he Denture
1)
Discrete painful areas.
Pearls
or sharp ridges
of acrylic.2) Pain on insertion and removal (inflamed mucosa). Denture not relieved in area of under cut.
Slide5Discomfort Related to Impression Surface of
t
he Denture
3)
Over-extension of lingual flange
(denture lifts
on tongue
protrusion, painful mylohyoid ridge, painful to swallow). 4) Lack of relief for frena or muscle attachments Peripheral overextension resulting from impression
stage/technical error.
5) Too Deep Post Dam (Palatal soreness)
Slide6Discomfort Related to Polished Surface
o
f
t
he Denture
1)
Pain at posterior aspect
of upper denture on opening (too thick buccal flange constraining coronoid process)
Slide7Discomfort Related to Occlusal Surface
o
f
t
he Denture
1)
Pain
on eating with occlusal imbalance. anterior or posterior prematurity, incisal locking, or lack of balanced articulation.2) Pain on labial aspect of mandibular ridge.
lack of incisal overjet
.
Slide8Discomfort Related to Occlusal Surface
o
f
t
he Denture
3)
Pain about periphery of
dentures. (accompanied by pain in masseter and posterior temporalis muscles which tends to intensify as day progresses). Increase VD
4)
Cheek biting
. width of sulcus is not restored.
Slide9Discomfort Related to Occlusal Surface
o
f
t
he Denture
5)
Lip biting.
Poor lip support/inadequate anterior horizontal overlap.6) Tongue biting. Teeth generally placed lingual to lower ridge.
Slide10Discomfort Related to
Systemic Factors
Burning mouth
syndrome.
Frictional lesions.
Herpetic ulcers.
Patient allergic to denture
material.Denture stomatitis.Angular cheilitis.Soft tissue hyperplasia (Flabby ridge, denture hyperplasia).Temporomandibular disorders.
Slide11Discomfort Related to
Systemic Factors
1)Burning
mouth
syndrome
(
burning and painful sensations in a mouth with normal mucosa). local, systemic, and psychogenic factors.2) Frictional lesions.
Xerostomia as a side effect of prescribed drugs.
3)Herpetic ulcers.
Herpes simplex or herpes zoster.
3
)
Patient allergic to denture material.
Higher
residual monomer content of acrylic
Slide12Discomfort Related to
Systemic Factors
4)Denture stomatitis
(
burning
or
itching sensation of palatal mucosa associated). Candidal infection, with ill fitted denture5)Angular cheilitis (inflammation of the corners of the mouth). Reduced VDO,
general health factors such as
nutritional deficiencies and immune dysfunction
seem
to be of greater
importance.
Slide13Discomfort Related to
Systemic Factors
7) Soft
tissue
hyperplasia (Flabby ridge, denture hyper-
plasia). long-term denture wearers and clearly related to the degree of residual ridge resorption. Chronic irritation from an overextended and/or ill-fitting denture.8)
Temporomandibular
disorders.
Change in VD, TMDs.
Slide142) Looseness
Decreased Retentive Forces
Lack
of
seal
Air beneath the impression
surface
XerostomiaNeuromuscular control problemsIncreased Displasive ForcesOverextension of denture bordersPoor fitOcclusal problems
Slide15Decreased Retentive Forces
Lack
of
seal.
Border
underextension
.
2) Air beneath the impression surface (Denture may rock under finger pressure, may see gap between periphery of flange and ridge).
Deficient impression, Damaged cast, Warped denture,
Over-adjustment of Impression surface).
Slide16Decreased Retentive Forces
3)
Xerostomia
.
Medication,
irradiation
of head and neck region, salivary gland disease.4)Neuromuscular control problems Change in shape relative to old dentures, high occlusal plane on mandibular denture.
Slide17Increased Displasive Forces
Overextension
of denture
borders.
2) Poor fit.
Poor/inappropriate impression technique especially
in posterior lingual area.3) Occlusal problems. inter-cuspal and retruded contact positions not
coincident
, lack of occlusal balance in protrusive,
lateral
excursions
and excessive vertical
overlap of
anterior
teeth
Slide183) Problems Associated With Support
1) Denture sink
into and tilt on supporting
tissues.
Forces
of mastication is
exerted on fibrous
displaceable.2) Bony prominence covered by thin mucosa. Denture rock over the prominence.3) Ridge resorption. Resorbed ridge results in little resistance to forces
in lateral and
antero
-posterior directions.