TOOTH Prep Flashcards
WHAT IS PREPARATION
- Dentist usingSpecialDentistDrills(Burs )
- Tooth Reduction are Shaped such that they will be Capable of Receiving a Suitable Restorative Material. ( I.e., Dental Gold )
- MOST COMON PREPS: Chamfer Prep. - Shoulder Prep
AMALGAM PREPS
- Created to receive Silver Filling Material.
- Once packed into tooth’s prepared area it is “MECHANICALLY LOCKED” in place.
- Prep is PURPOSELY “UNDERCUT**” to enhance the **Mechanical Lock.
GOLD INLAYS PREPS
Teeth prepared to receive a GOLD INLAY instead of AMALGAM will be Shaped WITHOUT “Mechanical Locks.. (Undercuts).
EXAMPLES OF RESTORATIONS
- GOLD – PORCELAIN CROWN or ENLAYS
- SILVER - Amalgam Fllings
- Acrylic Composites
MECHANICAL LOCK IS: UNDERCUT
- BOTH MEANINGS IS THE SAME.
- Notch Cut within Side of Tooth on Both Sides to Strengthen Fillingfrom Falling Out.
MECHANICAL RETENTION
Can be Created by using such things as “Undercut – Mechanical Lock”
DEFINITION OF “UNDERCUT”
- Any area of Model of Tooth which is below the Surface Line
MARGIN
- Finish Line of the Tooth Prep
FIXED PROSTHETICS
- Science and Art OF PROVIDING SUITABLE SUBSTITUTES FOR THE CORNAL PORTIONS OF THE TEETH for One or More Teeth.
PROSTHODONTICS
- Branch of Dental Arts and Science Pertaining to the Restoration and Maintaining of Oral Function.
- Prosthesis
- Dentistry
- Replacement of an Absent Part of the Human Body by an Artificial Part.
CCDT
- Current Clinical Dental Terms
COMPLETE CROWNS MAY BE
- Constructed of Metal ( Non Corrosive Type Metal, Like GOLD )
- Made of PORCELAIN ONLY If Jacket Type Crowns (Full Ceramic – NO METAL)
- Part of the Post/Crown systemAFTERROOT CANAL Therapy.
PARTIAL CAST GOLD CROWN
Crown Made Entirely from Metalwhich coversMORE then Half and LESS thanAllof theTooth’s Clinical Crown.
INLAY
- Dental Restoration that FITs into a Prepared Cavity and is held there by Precision…
- Are usually Cast in a Medium Hard GoldBUTcan be made of Other MATERIALSDental Porcine,CompositeORMetal.
INLAY
5 CLASSIFICATIONS
- CLASS 1: Occlusal
- CLASS 2: Mesial or Distal. - M.O.D – M.O. - D.O.
- CLASS 3: Mesial or DistalOFanAnterior Tooth.NOTInvolving the Incisal Angle
- CLASS 4: Mesial or Distal of an Anterior Tooth. Involves ONE or BOTH of it’s Incisal Angle
- CLASS 5: On the Facial Surface of ANY Tooth
ONLAY
- Covering of ONE or MORE of Cubist
- Cast Gold Restorations that Ordinarily Cover the.. Mesial, Occlusal and Distal Surfaces: (MOD) of Posterior Teeth.
- Covers AT LEAST ONE OF THE CUSP..
INLAY: - ONLAY:
- INLAY: FITS INTO TOOTH
- ONLAY FITS AROUND TOOTH
FPD
- FiIXED PARTIAL DENTURE:
- ONE or MORE MISSING TEETH: = ( Bridge )
TOOTH PREPARATION
What Is It:
- PREPARATION: Dentist Using Special Drills
- Restorative
- Mechanical Lock
Denture-Bearing Areas
- Are the Residual Ridge and Hard Palate.
The Border Extensions of a Maxillary
- The Border Extensions of a MaxillaryCompleteDentureareLimited by the..
- Labial Sulci,
- Buccal Sulci,
- PterygomaxillaryNotches and
- Vibrating Line.
Retention
If the Resistance to Vertical Displacement at the Denture away from the Denture Bearing Surface During some Action.
Stability
- By Definition: is the Resistance to Lateral Displacement at the Denture During Function.
Support: is the resistance to..
- Vertical Forces to Occlusion.
- Various Factors are Related to the Tissue Bearing Surface that Resists or Absorbed a Occlusal Loads During Function.
What Factors that Impact Retention,
Stability, and Support ?
- The nature of the bearing mucosa/tissue surfaces itself.
- Dose the tissue bearing surfacehave attachedor Unattached Gingival.
- Bone Contour, Height and contour of Alveolar ridge.
- Are any Tori Present. Are there any Bony prominent
- Muscle Attachments, What are the positions of various Frenum and there size, what’s the floor of the mouth
Mylohyoid Mucle
- Is Under Jaw Bone Next to Glands.
- DENTATE: Natural Teeth. 44 LBS
- EDENTULOUS: Dentures 13-16 LBS
- DENTATE: Natural Teeth. 44 LBS
- EDENTULOUS: Dentures 13-16 LBS
PHYSICAL Factors are Involved in Denture Retention
- Maximal Extension of the Denture Base, No Ridge Runners.
- Maximum Coverage Provides Snowshoe Effect
- Maximal Intimate Contact with Denture Base Muscular Forces can be used to Increase Retention Stability of the Dentures
Anatomical Landmarks of
Edentulous MAXILLA
- Incisive Papilla. Incisive Papilla is the Raised Soft Tissue Covering the Incisive Foramen Located in the Midline of the Hard Palate,BehindtheCentral Incisors.
- Rugae. Rugae: Are Irregular Ridges of Fbrous Tissue found in the Anterior One-Third of the Hard Palate.
Median Palatine Raphe
- Median Palatine Raphe is a Slight Tissue Elevation Occurring in the Midline of the Hard Palate Immediately over the Median Palatine Suture.
Vibrating Line
- Vibrating Line is the Line of FexionBetweentheHardandSoft Palates
Palatine Fovea
- The Palatine Fovea are 2 Depressions located on Either Side of the Midline On or Very Near the Vibrating Line.
Labial Frenum
- The Labial Frenum is a Narrow Fold of Oral Mucosafoundin theApproximate Midline.
- It Extends from the Inner Surface of the Lip to the Labial Surface of the Alveolar Ridge.
Buccal Frenum
- Buccal Frenum Extends from the Mucosa of the Cheek to the Buccal Aspect of the Alveolar Ridge.
- There are Two Buccal Frena.
- They are Located on each side of the Arch, Usually in the First Premolar Region.
Sulci
- The Maxillary Sulcus is a Groove Formed by the Mucosa of the Cheek or Lip and the Mucosa at the Base of the Alveolar Ridge.
Anatomical Landmarks of
Edentulous Mandible
Alveolar Ridge: After Natural Teeth are Extracted, the Remnant of the Alveolar Process is called the Alveolar or Residual Ridge.
Retomolar Pad: The Retromolar Pad is a Pear-Shaped Mass of Soft TissueLocatedat thePosterior Endof theMandibularAlveolarRidge.
