Podcast
Questions and Answers
What is the primary purpose of cavity preparation?
What is the primary purpose of cavity preparation?
- To enhance the aesthetic appearance of the teeth
- To increase the size of the cavity for better access
- To reduce food retention and plaque build-up
- To eliminate the lesion and establish a foundation for restoration (correct)
Which classification of cavities includes lesions that occur on the occlusal surface of molars?
Which classification of cavities includes lesions that occur on the occlusal surface of molars?
- Class II Cavities
- Class I Cavities (correct)
- Class IV Cavities
- Class III Cavities
Which statement correctly describes Black's classification of cavities?
Which statement correctly describes Black's classification of cavities?
- It focuses on the chronological age of the patient
- It considers the color change of the tooth structure
- It is based on the severity of pain associated with cavities
- It is based upon the site of onset of the carious process (correct)
What type of cavity is classified as Class II according to Black's classification?
What type of cavity is classified as Class II according to Black's classification?
What is one consequence of untreated cavities?
What is one consequence of untreated cavities?
Which type of cavity lesions occur on the smooth surfaces of anterior teeth but do not involve the incisal angle?
Which type of cavity lesions occur on the smooth surfaces of anterior teeth but do not involve the incisal angle?
What is an effect of cavities on the dentin-pulp organ?
What is an effect of cavities on the dentin-pulp organ?
Which of the following cavity classes would likely involve the incisal angle of anterior teeth?
Which of the following cavity classes would likely involve the incisal angle of anterior teeth?
What defines Class V cavities?
What defines Class V cavities?
Which classification includes cavities on the incisal edge of anterior teeth?
Which classification includes cavities on the incisal edge of anterior teeth?
How is a compound cavity characterized?
How is a compound cavity characterized?
Which of the following combinations of cavity classification describes a complex cavity?
Which of the following combinations of cavity classification describes a complex cavity?
In the Si/Sta classification, what does Stage 0 represent?
In the Si/Sta classification, what does Stage 0 represent?
What distinguishes Class IV cavities from others?
What distinguishes Class IV cavities from others?
Which of the following describes a simple cavity?
Which of the following describes a simple cavity?
What type of cavity requires operative intervention according to the Si/Sta classification?
What type of cavity requires operative intervention according to the Si/Sta classification?
What does the enamel wall of a prepared cavity consist of?
What does the enamel wall of a prepared cavity consist of?
Which portion of a cavity preparation is referred to as the isthmus?
Which portion of a cavity preparation is referred to as the isthmus?
What does the cemento-enamel junction (CEJ) refer to?
What does the cemento-enamel junction (CEJ) refer to?
Where is the cavo-surface margin typically found in a cavity?
Where is the cavo-surface margin typically found in a cavity?
Which of the following is true about the dentino-enamel junction (DEJ)?
Which of the following is true about the dentino-enamel junction (DEJ)?
What type of areas are defined as contact areas between teeth?
What type of areas are defined as contact areas between teeth?
What is the primary purpose of creating a cavity preparation?
What is the primary purpose of creating a cavity preparation?
Which cavity site is primarily associated with pits and fissures?
Which cavity site is primarily associated with pits and fissures?
Flashcards
Cavities
Cavities
Defects in tooth structure caused by harmful substances.
Cavity preparations
Cavity preparations
Surgical procedures for eliminating lesions, preventing infection, and preparing a tooth for restoration.
Anatomical cavity classification
Anatomical cavity classification
Classifies cavities based on the area of the tooth most susceptible to decay.
Pits and fissure cavities
Pits and fissure cavities
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Smooth surface cavities
Smooth surface cavities
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Black's classification
Black's classification
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Class I cavities (Black's)
Class I cavities (Black's)
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Class II cavities (Black's)
Class II cavities (Black's)
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Class III cavities (Black's)
Class III cavities (Black's)
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Class IV cavities (Black's)
Class IV cavities (Black's)
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Class V cavities (Black's)
Class V cavities (Black's)
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Class VI cavities (Black's)
Class VI cavities (Black's)
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Numerical classification
Numerical classification
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Simple cavity
Simple cavity
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Compound cavity
Compound cavity
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Complex cavity
Complex cavity
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ICDAS
ICDAS
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Mount and Hume Classification
Mount and Hume Classification
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Site 1 (Mount and Hume)
Site 1 (Mount and Hume)
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Site 2 (Mount and Hume)
Site 2 (Mount and Hume)
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Site 3 (Mount and Hume)
Site 3 (Mount and Hume)
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Enamel wall
Enamel wall
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Dentin wall
Dentin wall
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Dentino-enamel junction (DEJ)
Dentino-enamel junction (DEJ)
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Study Notes
Cavity Classifications and Nomenclature
- Cavities are defects in tooth structure caused by harmful substances.
- Cavity preparations are surgical procedures for eliminating lesions, preventing infection, and preparing for restoration.
- Anatomical classification classifies cavities based on area of liability:
- Pits and fissure cavities: occur in occlusal surfaces, buccal/lingual surfaces of molars, and palatal surfaces of anterior teeth.
- Smooth surface cavities: occur on the smooth surfaces of teeth, excluding pits and fissures.
- Black's classification classifies cavities based on the site of onset of the carious process:
- Class I: Pit and fissure lesions in occlusal surfaces of molars/premolars and occlusal two-thirds of buccal/lingual surfaces of molars.
- Class II: Smooth surface lesions on proximal surfaces of posterior teeth (mesial/distal).
- Class III: Smooth surface lesions on proximal surfaces of anterior teeth (mesial/distal), excluding incisal angle.
- Class IV: Smooth surface lesions on proximal surfaces of anterior teeth, involving the incisal angle.
- Class V: Smooth surface lesions on the gingival third of buccal/lingual surfaces of all teeth, excluding pits on palatal surfaces of upper incisors.
- Class VI: Cavities on the incisal edge of anterior teeth and occlusal cusps of posterior teeth.
- Numerical classification classifies cavities based on the number of surfaces involved:
- Simple cavities: involve one surface (e.g., simple occlusal (O), simple buccal (B)).
- Compound cavities: involve two surfaces (e.g., occluso-mesial (OM), occluso-buccal (OB), disto-lingual (DL)).
- Complex cavities: involve more than two surfaces (e.g., mesio-occluso-distal (MOD), occluso-bucco-lingual (OBL)).
- ICDAS (International Caries Detection and Assessment System): classifies cavities based on the severity of the lesion.
- Mount and Hume Classification (Si/Sta Classification): a minimal intervention approach based on the site and stage of the defect:
- Site 1: Pits and fissures on occlusal surfaces of posterior teeth.
- Site 2: Contact areas between any pair of teeth.
- Site 3: Cervical areas related to gingival tissues.
- Stages 0-4: Represent the severity of the lesion, from initial lesion to extensive cavity.
- Cavity preparation nomenclature:
- Enamel wall: the enamel portion of a prepared cavity.
- Dentin wall: the dentin portion of a prepared cavity.
- Dentino-enamel junction (DEJ): the line of junction between enamel and dentin.
- Cemento-enamel junction (CEJ): the junction between enamel and cementum.
- Cavo-surface angle: the angle formed by the junction of a cavity preparation with the tooth surface.
- Cavo-surface margin: the actual junction itself.
- Isthmus portion: the junction between portions of a compound or complex cavity preparation.
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