Title: PERIODONTAL CONSIDERATIONS FOR FIXED PROSTHODONTICS(1)
1PERIODONTAL CONSIDERATIONS FOR FIXED
PROSTHODONTICS(1)
2- PERIODONTAL DISEASE
- PERIODONTAL POCKET
- EXAMINATION
- TREATMENT PLANNING
- PERIODONTAL ASPECT OF FIXED OCCLUSION
- SPLINTING
3PERIODONTAL DISEASE
4Attachment unit
- Clinical gingival sulcus depth
- 12mm
- Epithelial attachment
- 1mm
- Connective tissue attachment
- 1mm
- Alveolar crest
- 2mm apical to the base of the sulcus
- periodontal disease patient
- crevicular fluid flow increase
A-Bgingival crevice B-Cjunctional
epithelium C-Dconnective tissue
attachment B-Dbiologic width
5(No Transcript)
6Periodontal ligament
- ??? ????? ??
- 0.250.1mm
- Margin? apex ?? ?? ?? middle 1/3 ?? ?? ??.
- Probing ? ?? ?? ?? ??
7- Periodontal disease ? two basic form
- Gingivitis
- periodontitis
8Gingivitis
- ??
- Inflammation of gingiva
- ???? ??
- Inflammatory cellular exudate
- Edema in the gingival lamina propria
- Gingival fiber ? ??
- Sulcular epithelium ? ulceration? proliferation
9Periodontitis
- Pocket formation? bone destruction ?? ?????? ???
?? - Extrinsic irritating factor ? ?? ???? intrinsic
disease(??? ??, ?? ??,periodontal traumatism ?) ?
?? ????.
10Marginal lesion
- ????? ?? ??? ??.
- Interdental papilla? ??? ??
- Redness
- Swelling
- Tenderness
- Bleeding
Plaque formation
calculus
Bacteria attach And gingiva irritate
Clinical sign
??? connective tissue? lamina propria?? ???? ??
11- Plaque maturation? three phase(Löe)
- First phase
- 2 ? ??? ???
- G() cocci ? rod ? ??ltG(-) cocci,rod ? 30? ???
??gt - Second phase
- 1-4 ? ??? ???
- Fusobacterium, filamentous organism ? ???
- Third phase
- 9? ??
- Spirilla,spirochetes ???
- Sulcular epithelium?? PMNL infiltration
- ????? ???? ???? ?????? ??
- Mast cell, plasma cell, lymphocyte,mononuclear
cell ??
12- Gingivitis in the beginning stage
- Transeptal fiber are still intact and there is no
apparent resorption of alveolar crest
13Advanced lesion
- Marginal lesion ? ???? ?? ??? ?? ? ?? ??????
????? ???? ?? ???? ???? ????. ? ? ??? occlusal
trauma ? ??? ? ??? ? ??? ???? ?? ???.
14- Periodontitis
- ?????? transeptal fiber ?? ??. Alveolar bone ?
???? ??.
15Occlusal traumatism
- Primary occlusal trauma
- ??? ??? ????? ??? ?? ??? ?? ?? ?? ??? pathologic
lesion - Clenching, grinding(bruxism), tongue thrusting,
nail biting. - Bruxism ? ???
- Premature-????? ??? ???? ?? ???.
- Emotional distress
- Secondary occlusal trauma
- ?????? ?? ??? ????? ??? ?? ???? ?? ??? lesion
16PERIODONTAL POCKET
17- Periodontal attachment unit ? ?? ?? ??.
- 3-4 mm? ???? ???? brushing ? flossing ??? ?? ???
???. - ??? ??? ?? ????? ??
18EXAMINATION
19Visual examination
- Color, consistency, texture, shape of gingiva
unit. - ??? ?? ??? ?? ?? ?? ??.
20Attached gingiva
- ????? ???? ? ??? ????? ??? ???? ?? ??? ??.
- ??? ???? ? 6??? report
- ?? ??? ? ?? ??? ??-??? ??? ???.
- ??? ? ??? ??-???? tissue graft ? ? ?? ?? ? ? ??
??? ?? ?????. - 1mm? sulcus, 1mm? epithelial attachment ??? ???
connective tissue ? ?? ??? ????? 2mm? ??? ????.
21Probing
- ??? 6 ??? ??? ??? ??? ????? ??
- Probing ?? ??? bleeding,exudate(????? ??) ? ????
??.
22Mobility
- Loss of tooth attachment ? indication
- 1?(??? early stage)?? 3?(?? ??, ?? ???? ??)??.
- ??? ???? ??? ?? ? ??? ??? ???? ?? ????? ???.
- Secondary occlusal trauma ? ?? ? ?? ??? splinting
? ??? ? ??.
23Radiograph
- ??,??,??? ???
- ??? ??? ??? ????? ?? ??? ??-long cone tech.
- XCP ??.
- ??? ??
- Alveolar crest resoption
- Lamina dura ? ???? ??
- ??? ? ??? ??
- ??? ? ??? ??
- PDL? ??
- ? ??
- Crown-to-root ratio
24Habits
- Bruxism
- Visual wear facet pattern
- X-ray ??? lamina dura,PDL??.
- ???? ??? ?? ??? ??? ??? ?? ???? ??? ? ??? ???
????. ??? ???? ?? ???? ?? ?? ?? ??? ?? ???? ??
????. - Wear facet ? ???? ?? ??? ?? ????? ????? ????? ???
???? ???.
25(No Transcript)
26Preparation of tissue
- ???? ??? ???? ???? ???? ?? ??? ????? ?? ?? ??.
- ??? ???? ???? ?? ??.
- ?? ?? ? ??? ??? ???? ???? ??? ??? ????.
27- Goldman ? Cohen ? ?? outline ? ?? ??
- ???? ??? ?? ??.
- Self-cleansing ? ? ??? tissue contour ??
- ??, ???? ??? gingiva margin
- Pyramidal interdental papilla(?????? ?? ??? ???
??? col ??? ??? ?????? convex ? ?? ??? ??? ??) - ??? ????
- ??? ??? vestibular fornix ? ???.-????? ??? ?? ??
- ??? ??? ??? ??? ?? ?? ??? ???? placement
- ??? ????? ??
- ????? ??? ????? ?? ?? ??
- ??? ???
28TREATMENT PLANNING
29Initial preparation
- Oral physiotherapy
- ? ???? ?? ? ?? ???? ?? ??? ???? ??? ???? ??? ???
????? ?.
30Preparation of oral tissue
- ????? ??? ???? ?? scaling ? curettage ? ???.
- Attachment ??? irritant ? ??
- ??? brushing? flossing
- ??? ???? ??? ???? ??.
31- Scaling ? curettage ?
- ???? ?? ??
- ?? ??
- ????? ???? ??(??? ??? ?? ??? ??? ? ??)
- ???? ???? ??
- ????
- ??? ??? ?? splint ??
- ??? ? ?? ??.
32Surgery
- General principle
- 1?? ??
- Pocket ??
- Physiologic tissue contour ??
- ???? ???
- Gingivectomy
- Mucogingival procedure
- ? ??? ??? mucoperiosteal flap entry
33- ??? ?? Advanced surgical techniques
- ?? ???-hemisection
- ?? ???-mesiobuccal or ditobuccal root remove ??
???? splint - ???
- Swage procedure
- Osseous coagulum procedure
- ??? ???? trephine? ??? ??? ??
- ?????? ?? ??? posterior iliac crest ? ?
34- Final preparation of tissue
- ?? ??? ?? ??? ?? ??? ?? ?? ??? polishing ???? ??.
- ?? ? interference ??? ?? ???? ??
- ?? ???? ??. ???, ??? ??, ???, ????, ?????? ???
??. ??? calcium phosphate ? ?? 8 ????? ??? ??
??? ??? ???? ??.
35PERIODONTAL ASPECT OF FIXED OCCLUSION
36Occlusion and its effect on periodontium
- Periodontal fiber ? ?? ?? ??? ??? ? ??? balancing
side interferance ??? ???? ???? ?? ??? ????. - ???
- Pressure area-bone resortion
- Tension area-bone formation(??? ?? ?)
37- Rotational force(torque)
- Tension ? pressure ? ????? ?? ??? ?.
- ?? duration? frequency ? ???? ?? ???? ??? ??? ??
- ???? ?? ? ??? ????? ???? ?? ? ??? ????? ??.
- ?? ??? ???? ?? ???? ?? ?? ??
- ???? ??? adaptative capacity ? ???? ????? ????
??.
38- ???? ?? ????-TFO(trauma from occlusion)? ??.
- Occlusal traumatism ??? ???? ???? ??? ???? ???.
??? ? ??? ????? ?? inflammation ??. ??? TFO ?
???? ????? inflammation ? ?? ??? ???? ??????? ??
???? ???? ????. - ?, TFO? marginal gingiva ? ??? ???? ??? ??? ??
????? ?? ??? ???. ?? zone of codestruction ??
???. - ???? ? ???? RPD ? ???
A1-?? ???? ?? 2-?????? ?? 3-TFO ???? ?? B
buccal view
39- TFO ? ??? ??
- Injury
- ??? ??? ??? ?? ?? ??
- Repair
- ?? ????? ??? ????? drift ? ? ?????
- ??? ????? ???? ?? ?? ??? ??
- Periodontium ? ??? ??
- ?? ????? ???? ????? ?? ????? remodeling ? ?????
???? pocket ? ???? ???? ??? ? ??? ???? ?? ??? ??.
40Occlusal trauma in gingivitis and periodontal
disease
- ??? ????? ??? ??? ??.
- Periodontium ? two zone
- Zone of irritation
- Marginal gingiva
- Interdental gingiva
- ???? ?? TFO (?? ??? ???,???? ?? ?? ??, ??? ???
RPD rest ?)? ????? ????? ???? ???? ???. TFO ?
marginal gingiva ? ??? supporting tissue ?? ???
??. Marginal gingiva ? ??? ???? ???? ?? ?? ?????
? ??? ?? ?? ??. - ??? ??? ???? ??? ???? ??? ?? ???, ??? ????
supporting periodontal tissue ? ???? ??? zone of
codestruction ?? ???? ??.
Gingivitis ? periodontal pocket ? ???? ?.
????,??,?? ?????? ??? ???? ??
41- Zone of codestruction
- Transeptal fiber ? supporting periodontal tissue
(bone, PDL,cementum) ?? ??. - ??? ? ???? ???? ?? ????? ?? ??? ?? ?? ??? ???? ??
?? ???? ??. - TFO? ?? ????? ??? ???? ??? ??? ?? ???? ? ???
transeptal fiber ? ??? ?? ???? ?? ??? ?? bony
crest ? ????. ??? TFO ? transeptal ?alveolar
crest fiber ? ????? ???? ??? ??? PDL? ?? ???? ??
??? ??? TFO ? ???,vertical-craterlike osseous
defect,?? ??? ?? ????. ???? ??? ?? ??? ?? ?????
?? TFO? pocket ? ?? ??? ?? ???,PDL??,????
vertical defect ?? ??? ? ??.
42- TFO ? ????? ??
- Periodontal space ? widening
- Lamina dura ? ??
- Vertical (angular) bone ? ??
- ???? TFO ? ?? ??? ????.
43- TFO? ??
- ???? ??, ???? ?? ????? capacity ??, ??? ?? ??..
- ?????? TFO? ??? ???.(???? ??? ????? TFO ? ??? ?
??.) ???, ?? ????? ? TFO ? ???? ?? ???. - Primary
- Clamping ,clenching,grinding habit? ??
parafuntional movement - Secondary
- ???? swallowing ? ?? ???? ???
- Support tissue ? ???? ?? ???? ??? ??.
44Place of margins of restoration
- ???? ?? ??? ???? ??? ??? ??? ?? ?? ??? ???? ????.
- ?? ?? ?, ??? ?????? ??? ??? CEJ ? ????? ??.
- ?? ??? ??? ?? ??? ??? gingival sulcus ? base
(????? ?? ?? sulcus ?? ??? ?? ??)? ????? ??. - ??? ??? ?? biologic width ? ???? ?? ???? ????
???? ??.
45Biologic width embrasure
- Embrasure
- Proximal contact ??? space
- ??? ????? ? ??? ???? ? ??? ?
- ??
- ????? ?? ??? ???? spill way ? ???? ???? ????? ???
??? ??? ?. - ???? ? ??? ???? ???? ?? ??
- Embrasure ? ??? ???? ??
- ??? ?? ??? ? ???? ??
- ???? ?? ?? ?? contact ???? taper away??? ??.
46(No Transcript)
47SPLINTING
48- ??
- ??? ????? ???? ?? ???? ??? injury ??? ??
- Periodontal support ? ???? ??? ??? ???? ????
- ???? ??? ??
49- Splinting ? ?? ??
- ???? ??? ??
- ?? ??
- ???? ??? ??
- ???? ?? ???.
- ???? ???? ???? ?? ?????? ? ??
- ???? ??? ?? ? ????
- ??? ???? ??? ????
- ??? ?? ??? ?? ???? ???? ?.
50- ??? ?? ??? splinting ?? ???? ??? ??? ?? ?? 2? ???
???? ??.(???? ???? ?? ??? ??) - ????? ????? ???? ???? ?? FPD??? ??? ??? ??
- FPD ? ????? ???? ?? ?? ??? ??? ??? ???? ??.
- Splinting ? ??? ????? ???? FPD? ??? ????? ???
??? ???? ??? ??? ??.
51- ??? ? ??? ???? ? ?? ??? ??? ???? ??
parafunctional habit ? ??? ??? ??? ?? ??
splinting ?? ???. ?????? ???? ?? ? ???? splinting
? ??.??? ?? ??? ???? ?? ???? ??? ?? ?? ? ??. - ??? ???? parafunctional habit ? ???? ?? ????
????? splinting ?? ?? ??? ?? ??? ???? ? ? ??.
52- Cross-arch splinting (splinting around the
corner)? ?? ??? ?? ?? ? ???(stress redirect), ???
???? torquing? ?? ??? ??? ?? ??.
53- ???? ?? ?? cross-arch splinting ? ???? ??? ? ?
??. ??? ?? ???? ? ??? ??? ??? ?? ?? ??? ????. - Splinting ? ?? ??? ??? ??? ???.
54Splinting methods
- Splinting ? ??
- Temporary or reversible
- Ligature wire
- A-splint or circumferential wiring
- Removable appliance
- Hawley retainer
- Continuous clasp RPD
- Resin bonding
- Swing lock RPD ? ???? ????? ? ?? ???.
- permanent
55Splinting by bonding
- Composite resin ? ??
- Resin ???? ????? extracoronal,intracoronal wire
or screen mesh ? ?? - Permanent? ??? ? ??? Maryland bridge
56Provisional splinting with full coverage
acrylics
- ???? ? fixed splint? ??? ? ???? ???? ?? ???? ??
- ???? ? ?? ???? ?? ?? ??.
- ?? ????? ???? ?? ? ?? ??.
- ?? ? ??? ?? ???? ??.
57Determination of abutment
- ??? ?? ?? ???? ? ???
- Crown to root ratio
- ??? leverage ???? ??? ?? ?? ??.
- ?? ?? crown to root ratio ? ??? ??? ?? ??? ??? ??
??? ?? - ???? ??? ?
- Onlay ? ???? ??? ???? ??? ?? ?.
- Cusp ? ???? ??? ???? ?? ?? ? ??? Lateral and
tipping stress ? ??? ? ??. - ????? ??? ??? ??
- ??? ?? ??? ???
- ???? ?? ??.
58- ?? ?? ??? ?????? ????? ???? ? ?? ????? ?? ????
??? ?? ??? ???? ? ??. - ???? ???? ??? ??? ?????? ??? ??,??? ?? stamp
cusp? ??? ??? ?? ???? ??? ?? ? ??. - Mobility
- ??? ?? ?? ???? ?? ?? ?? ???? ??? ?? ???? ??.
- ???? ??? ? ? ??? ?? ?? ?? ?? ???.
- Stress ? ?? ????? ???? ???
- ?? ??
- ??
- ?????...
59Determining prognosis
- ?????, 3????? ???? ????? ?
- ?? ?? ?
- ?? ?? ??
- ? ??? ??
- ??,?? 1/3 ?? ? ??? ??? ??? ?? ??.
- ? ??? ?? ?? ??? apical 1/3 ? ?? ???? ???? ??? ??
??? ????? ??? ??? ?? ?? ?? ???? ??? ??. - 3 wall defect gt 1 wall defect
60Maintenance
- ????? 1?? ??
- ????? ? ?? ?? ?? ??? ???.
- ??? home care ??? ??
- ??? 3??? ??? ???? scaling ? root plane ? ?? ?? ??
?? ??.
61- ??? ???? ??? ??? ??? ??? ?? ??? ? ???? ????. ???
???? ???? ??? ???? ??. ??? ???? ??? - Cleansability
- ?? ??? ??? ??
- ??? ??
62??? ??? ?????.