leftovers Flashcards
1-obturation
2-endodontic obturation
3-how far into the canal
4-ideal obturant
1-use of material & techniques to fill entire root canal system in 3D manner
2-to prevent reinfection of root canals that have been clean, shaped, disinfected by instrumentation, irrigation & medication procedures
- cant cleanse & shape but can isolate & seal
- stops coronal leakage
- blocks influx of H20 & nutrients
- entombs surviving microbes
3-at termination of where you instrumented
4-easily introduced into canal
- seal canal laterally & apically
- not shrink after being inserted
- radiopaque
- bactericidal
- not stain tooth
- non toxic
- sterile
- easily removed
1-solid obturants
2-semisolid obturants
3-pastes
4-silver points
5-siglets
1-silver points
- gutta percha
- carrier based
2-pastes—
zinc oxide eugenol
plastics sargenti paste (N2)
3-lack of length control (overfills/underfills)
-unpredictable sealability—voids, shrinkage, & solubility
4-corresponds to last file size used in prep
- *contraidicated**—corrodes spontaneously w/ serum & blood
- –irreversible staining
- –lack plasticity—doesnt conform to canal
- –complicated apical surgery
- –induce inflam root resorption
5-used to remove silver points
1-gutta percha
2-does gutta percha alone seal the canals
3-good stuff about GP
1-form of rubber
-A-form—natural (brittle)
-B-form—synthetic (root canal & malleable)
-easily introduced into canal—seals canal laterally & apically
PROS= plasticity, easy to manage, inert (low toxicity), & self sterilizing (doesnt promote growth of bacteria)
CONS= lack of adhesion to dentin (doesnt seal)
can rebound & pull away from canals
2-no
3-easily introduced into canal
radiopaque
bactericidal
not staining
non toxic
be sterile
easily removed
1-sealers
2-ZnOE based
3-Plastic Epoxy
4-Glass Ionomer
5-CaOH2
6-obturation technique
1-provides a fluid tight seal between tooth & core material
functions= antimicrobial agent
filling discrepancies between material & dentin walls
binding agent between filling material & dentin walls
lubricant
gives radiopacity
2-roth selaers
-standard…but doesnt bind to dentin & is slow sletting
3-binds to dentin but it stains & is solvent insolubility
4-binds to dentin but is too hard
5-is antimicrobial but doesnt have long term stability
6-cold compaction or warm compaction
1-lateral condensation
2-warm vertical condensation
1-preselected master gutta percha cone filled into canal to WL & accessory cones are in laterally w/ spreader until filled to CEJ
-fitted (snug/tug back) to WL
-spread inserted alongside of MC 1-2 mm short of WL
-accesory cone into space made by spreader
-spreader inserted until resistance is met (repeat until filled)
ADV= length control, easy to remove, & easy techniqe
DISADV= cant obturate irregularities & insertion cant generate forces—vertical root fracture
2-preselected master gutta percha is fitted into at WL
- MC cone is seared off, compacted to make room for plasticized GP segments
- –fit GP MC
- –fit system B plugger
- –seat sealer coated MC to WL
- –sear of MC w/ system B, leaving 5 mm GP
- –condense heated MC plug w/ a cold plugger
- –condense heated MC plug w/ a cold plugger
- –back fill the canal w/ GP expressed from the obtura
- –GP back fill is condensed w/ cold plugger
verrucal papillary lesions
1-infections
2-reactive
3-idiopathic
1-squamous papilloma
verruca vulgaris
condyloma acuminatum
focal epithelial hyperplasia
2-inflammatory papillary hyperplasia
3-verruciform xanthoma
sebhorrheic keratosis
1-squamous papilloma
2-verruca vulgaris
3-condyloma acuminatum
1-benign proliferation caused by HPV 6 & 11
- 20-50 yr old…equal gender
- soft palate, tongue & lips
- some pedunculated
- koliocytes (clear cells w/ pyknotic)
- tx w/ surgical excision
2-benign prolif caused by HPV 2, 4, 6, 40
- skin & hands of kids
- vermillion border, lips & tongue
- cutaneous horn—accum of keratin on a wart
- prolif of sqamous epi finger projections
- tx= liquid N2, lactic acid, surgery
3-benign prolif epi caused by HPV 2, 6, 11, 53 & 54
- STI—genital warts
- 20% of sexually transmitted disease
- mouth & larynx, genitalia & perianal
- clustered lesion
- labial mucosa, soft palate & tongue frenum
- epi projections are broad & blunt
- surgical excision
1-focal epithelial hyperplasia
2-inflammatory papillary hyperplasia
3-verruciform xanthoma
4-seborrheic keratosis
1-benign prolif caused by HPV 13 & 32
- native americans & multiple members of family
- poor, crowded living, poor hygiene
- usually kids
- labial, buccal, & lingual mucosa
- multiple lesions, flat or papillary, usually clustered
- tx= spontaneous regression—surgical
- abrupt acanthosis of epi= koilocytes & mitosoid cells
2-bc of ill fitting denture, poor denture hygiene or always wearing denture
- candida albicans?
- usually in palatal vault
- papillary growths hyperkeratosis inflammation
- tx= removal of denture to help w/ early lesions
- –antifungals help, excision for larger/older lesions
3-hyperplastic condition of mouth, skin & genitalia
-unknown etiology
-soft, painless, sessile mass w/ white & yellow/papillary surface
surgical excision
4-skin of face, trunk & extremities
patients >40
macules that become fissured= verrucous plaques
-no oral lesions
-stuck on appearance
-dermatosis papulosa nigra on black ppl
-no tx needed
-horn cysts= keratin filled invaginations
1-goals of perio therapy
2-intial therapy goals
3-summary of initial therapy goals
1-to alter/eliminate microbial etiology & contributing risk factors for perio…stopping progression of disease & perserving dentition in state of health, comfort & function w/ appropriate esthetics & prevent recurrence of perio
-regeneration of perio attachment apparatus where needed
2-arrest/attenuate progress of perio disease
induce positive changes in subg bacterial flora
resolving inflammation
create environ that permits gingival tissue to heal
improving/maintaining attachment level
dec pocket depth
prep tissues for surgical procedures
3-dec bioburden mass to tissues
- minimize impact of systemic factors
- eliminate/control local risk factors
1-dec bioburden challenge to tissues
2-minimize impact of systemic factors
3-elim/control local risk factors
1-intensive training of patient in appropriate tecniques for self-care & professional removal of calc deposits & bacterial products from tooth surface
- calc deposits always are covered w/ living bacterial biofilms that are associated w/ continuing inflammation if not removed
- facilitating oral hygiene procedures
2-certain systemic diseases can inc risk of periodontitis & severity—systemic & glycemic control
3-plaque development & retention
- –oral hygiene (dec bioburden mass)
- –calculus (maintains bioburden mass)
- –overcontoured restorations (plaque rention)
- occlusal trauma factors
- local environmental risk factors that can inc risk of developing periodontitis in sites
- plaque rention in a site allow damage over time to periodontium
1-anticipated outcomes w/ initial therapy
2-phase 1 therapy
3-initial therapy/hygenic phase
1-reducing/eliminating inflammation
- reducing probing depths
- improving clinical attachment
2-management of acute problems (perio abscess, NUG, endo-perio)
- control of local etiology (plaque, 2ndary factors & occlusal forces)
- –dec bacterial load & improve bacterial flora
- prep teeth for biologically healthy root surfaces
- minimize plaque harboring factors
- re-eval 4-6 wks after completion of initial therapy
3-plaque removal/control
scaling/root planing—calc debridement
minimize plaque retentive areas (restorations)
selective extraction
adjust occlusal discrepancies
re-eval 4-6 wks
1-patients role
2-effects of oral hygiene
3-effects of oral hygiene by professional cleanings on subg
4-effects of personal oral hygiene on subg
5-effect of adv perio therapy w/o personal hygiene
6-why Scaling/root planing
1-cotherapist in treatment…train for self care
2-daily deplaquing will improve superficial gingival health (reduce inflammation)
- toothbrushing can reach up to 1 mm subg, but can alter up to depth of 3 mm
- remocal of supraging plaque= limited response
- in pockets over 5 mm oral hygiene alone isnt effective in altering subg biofilm
3-dec # of spirochetes & bacteriodes after 3 wks of professional daily plaque control
4-no impact when probing depth >5 mm
5-ineffective
6-dec quantitiy of organisms below a critical mass & composition of remaining bacterial flora to one associated w/ health
- removal of root surface elements (calc-plaque-endotoxin)
- biologically acceptable root surface
1-microbial shift
2-scaling root planing
3-scaling
4-root planing
1-effected by removal of bacterial by scaling root planing ===smooth root surface, supports effective oral hygiene & removal of toxins
2-reduce contributing factors like calc & overhanging restorations
- removal of calcified deposits, bacterial products (endotoxins) & biofilm from tooth surfaces & infected perio pockets
- outcome enhanced by patient oral hygiene
3-process by which plaque & calc are removed from suprag & subg tooth surfaces
4-process by which residual embedded calc & cementum are removed from roots to produce smooth, hard, clean surface
1-alterations in exposed cementum
2-how much to root plane
3-outcome after phase 1 therapy
1-hypermineralized surface zone
changes in organic matrix
endotoxins cytotoxic in tissue culture
2-deposits of calc on root surfaces in cementum irregularities
scaling is insufficient bc some cemetum has to be removed (planing)
-bacterial toxins dont strongly adhere to diseased root surfaces so tooth smoothness isnt required, BUT is is a clinical indicator of calc removal available at present
3-reduction of clinical inflam (erythema, edema & bleeding)
- prep of bio acceptable tooth surfaces
- microbial shift to less pathogenic flora
- reduction of probing depth
- gain of clinical attachment
1-whats a template
2-trimming
3-used for
4-shades
5-prep
1-matrix
- helps form lingual wall
- determines incisal edge: position, length, thickness & shape
- made of poly vinyl, silicone, or clear vacuform
2-trim mesio-distally
-no material overlapping facial surface
3-incisal edge restorations, diastema closure, or peg lateral build up
4-A1 Dentin & BL Light Enamel
5-bevel anterior w/ 2 mm bevel w/ an 8 bur
