Oral Surgery (doc micks) Flashcards
Horizontal incision along the crest of the ridge or gingival sulcus
Without incision
Envelope flap/ Crestal flap/ Sulcular/ Horizontal
with 1 VI
Triangular Flap
with 2 VI
Trapezoidal flap - best access
for small apical lesion but with normal bone support
convex area is directed towards the occlusal
Semilunar Flap
submarginal incision flap ( Luebke -Ochsenbein)
Modified Trapezoidal Semilunar Flap
ORo - antral communication (Max. sinus perforation)
Traumatic extraction or aggressive infection
Most commonly displaced root- Palatal root of Max. 1st Molar
Pedicle Flap
1-2mm - Oro antral comminication
No tx
2-6mm
Figure of 8 to retain clot
6mm or larger
Watertight closure with
- Buccal advancement flap (Berger’s technique)
- Palatal pedicle flap
- Pedicled Buccal fat pad
to remove infected tissue , mucosa, or foreign objects from max. sinus
At the maxillary premolar area above the roots
Caldwell- Luc Technique
BE. ‼️📌 Where can you find stratified squamous epithelium in the max. sinus
In cases of Oro- antral fistula
Mechanical Principles of Extractiom
- ,Expansion of Bony socket
- Lever
- Wedge
- Wheel & Axle
extraction forces
Apical- Buccal - Lingual - Rotation- Traction
Order of Extractiom
Max. first before Mandibular
Posterior first before Anterior
BE‼️📌 weakest portion of the needle
HUB
Where to grip the needle holder
2/3 from the tip of the needle
Closest of ideal suture
Goretex
Polyetrafluoroethylene
BE‼️📌 Goretex can also be used as a barrier membrane material for
GTR
single sutures with separate knots
best securing the papilla
Interrupted
long span multiple extraction cases
Continuous
used to close open socket & to prevent clot displacement
Figure of 8
everted wound edges (ex. maxillary torus removal)
for suturing two adjacent papillae with one suture
Horizontal Mattress
controlling bleeding deep soft tissue incision
Vertical Mattress
Tooth Displacement
- Maxillary Sinus
- Infratemporal space/ Fossa
- Buccal space
- Submandibular Space
is thin bone & may fracture
Max. Tuberosity
remove suture tightly
If more than 2/3
If less than 2/3
detached to periosteum - reposition fractured segment suture tightly
If tooth is infected
remove tooth them fractured tuberosity & suture tightly, irrigate well
impacted max. 3rd molar is pushed through the periosteum
Infratemporal fossa/ space
Dry socket
Alveolar Osteitis / Fibrinolytic Alveolitis
suspected malignancy
Do not Exo
because of the risk of tumor seeding
Lateral spread of malignant cells along a wound/ needle tract
When is pain felt in cases of dry socket
2-4 days
can be rub off
Candidiasis
Stretch
Leukoedema
can’t rub off /stretch
Leukoplakia
Wound Healing 3 Phases
Inflammatory
Proliferative
Remodeling
Initial Lag phase, Immediate 2-5 days
- Hemostasis
- Vasoconstriction- spontaneous reaction
- Platelet aggregation
- Thromboplastin makes clot
- Inflammation
- Vasodilation
- Phagocytosis
Inflammatory Phase
Fibroblastic Phase : 2 days - 3 wks
- Granulation - main purpose : fill defect , facilitate further healing granulation tissue formation
- Fibroblast lay bed of collagen - reticular type III
- fill defects and produces new capillaries
- Contraction
- wound edges pull together to reduce defect
- Re-epithelialization
Proliferative Phase (;Fibroblastic Phase 2days - 3wks)
new collagen forms which increases tensile strength of wounds
Scar tissue is only 80% strong as original tissue
Remodeling Phase (3 wks - 2 yrs)
stabilized essentially same anatomic position prior to injury
- Wound repair then occurs with minimal scar tissue
Primary Intention
gap left is betweem woumd edges after repair (tooth socket)
it implies that tissue loss has occurred in the wound & requires granulation tissue
Secondary Intention
occurs when a wpund is initially left open for a period of observation before closure
Associated with tissue grafts & implants
Tertiary Intention (Delayed Primary Closure)
What intention is dental implants
Tertiary Intention
Local measures to control hemorrhage
- Local pressure
- :Gelfoam
- Extraction socket packing materials
- Electrocautery or Electrosurgery
- Ice or cold compress
- Tannic Acid / Tannins (Tea bag)
- Sutures
3 types of Hemorrhage
- Primary
- Secondary
- Reactionary
during surgery hemorrhage
Primary
occurs up to 2 wks post. op (infection)
Secondary
hours after surgery disruption of wound
Reactionary
‼️📌BE.
What do you call bleeding in an extraction socket after a few days due to wound sepsis-
Secondary
‼️📌BE
Primary Lesions
FLAT= MAPA
Flat non- palpable lesions- skin discoloration
(ex. freckles, flat moles, port- wine stain)
ex.
Macule
Papule
<10mm - small
Macules
> 10 mm - large
Papule
‼️📌BE
Elevated Lesions - PA-PLA- Nod
Papule
Plaques
Nodule
ex. of Elevated Lesion
Nevi, warts , lichen planus, insect bites
<10 mm small
Papules
> 10 mm - large
Plaques
firm lesions that extend into the dermis or subcutaneous tissue
Nodules
ex. of nodules
Cysts
Lipoma
Fibroma
Clear- fluid filler blister VBP
Vesicles
Bullae
Pustules
clear fluid filler blister - <10mm- small
Vesicles
clear fluild filler blister
>10mm large
Bullae
vesicles contain pus
Pustules
‼️📌BE
What primary lesioj appears loculated
Vesicles
Secondary Lesion
- Erosions
- ,Ulcers
- Fissure
- Atrophy
- Excoriation
- Crusts (scabs)
- :Scale
- Scar
- ,Eschar
shallow, superficial opening that shows loss of part or all of the epidermis
Erosions
crater-like lesions with loss of the epidermis & at least part of the dermis
Ulcers
linear often painful deep breaks within skin surface
result of excessive xerosis (dryness of skin)
Fissure
localized shrinking of the skin which result in paper thin, wrinkled skin with easily visible vessels
results from loss of epidermis, dermis or both
Atrophy
linear erosion caused by scratching , rubbing or picking
Excoriation
consist of dried serum, blood or pus over damaged layers of skin
Occurs in inflammatory or infectious skin diseases (eg. impetigo)
Crusts (scabs)
thin, compressed superficial accumulation of horny epthelium
Scale
permanent fibrotic skin changes that develop as consequences of tissue injury
Scar
necrotic tissue discarded from the surface of the skin following injury or disease
Burn px or gangrene
Eschar