Endodontic Anatomy Of Pulp Chamber Floor

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WHAT CAN MAKE LOCATING THE NUMBER AND POSITION OF ORIFICE ON PULP-CHAMBER FLOORS DIFFICULT

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1. RESTORED TOOTH
2. MALPOSED TOOTH
3. CALCIFIED TOOTH
4. CARIOUSLY BROKEN DOWN TOOTH
5. GOUGED BY PREVIOUS ACCESSING TOOTH

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ENDODONTIC THERAPY IS ESSENTIALLY

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1. SURGICAL PROCEDURE
2. MICRO-NEUROLOGIC SURGICAL PROCEDURE

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FACTS ASSOCIATED W/ RELATIONSHIPS OF THE CHAMBER TO THE CLINICAL CROWN

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1. PULP CHAMBER WAS ALWAY IN THE CENTER OR THE TOOTH AT THE LEVEL OF THE CEJ
2. WALLS OF THE PULP CHAMBER WERE ALWAYS CONCENTRIC TO THE EXTERNAL SURFACE OF THE CROWN AT THE LEVEL OF THE CEJ
3. DISTANCE FROM THE EXTERNAL SURFACE OF THE CLINICAL CROWN TO WALL OF THE PULP CHAMBER WAS SAME THROUGHOUT CIRCUMFERENCE OF THE TOOTH AT THE LEVEL OF THE CEJ

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ANATOMIC LAWS OF ENDODONTIC

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1. LAW OF CENTRALITY
2. LAW OF CONCENTRICITY
3. LAW OF CEJ

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WHICH ANATOMIC LAW STATES, FLOOR OF THE PULP CHAMBER IS ALWAYS LOCATED IN THE CENTER OF THE TOOTH AT THE LEVEL OF THE CEJ

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1. LAW OF CENTRALITY

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WHICH ANATOMIC LAW STATES, THE WALLS OF THE PULP CHAMBER ARE ALWAYS CONCENTRIC TO THE EXTERNAL SURFACE OF THE TOOTH AT THE LEVEL OF THE CEJ

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1. LAW OF CONCENTRICITY

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AN ANATOMIC LAW STATES THAT THE CEJ IS THE MOST CONSISTENT, REPEATABLE LANDMARK FOR LOCATING THE POSITION OF THE PULP CHAMBER

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1. LAW OF CEJ

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RELATIONSHIPS ON THE PULP-CHAMBER FLOOR NOTED IN ALL TEETH

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1. FLOOR OF PULP CHAMBER IS ALWAYS A DARKER COLOR THAN THE SURROUNDING DENTINAL WALL
2. COLOR DIFFERENCE CREATES A DISTINCT JUNCTION WHERE THE WALLS AND THE FLOOR OF THE PULP CHAMBER MEET
3. ORIFICES OF THE ROOT CANALS ARE ALWAYS LOCATED AT THE JUNCTION OF THE WALLS AND FLOOR
4. ORIFICES OF THE ROOT CANALS ARE LOCATED AT THE ANGLES IN THE FLOOR WALL JUNCTION
5. ORIFICES LAY AT THE TERMINUS OF DEVELOPMENTAL ROOT FUSION LINES, IF PRESENT
6. DEVELOPMENTAL ROOT FUSION LINES ARE DARKER THAN THE FLOOR COLOR
7. REPARATIVE DENTIN OR CALCIFICATION ARE LIGHTER THAN THE PULP-CHAMBER FLOOR AND OFTEN OBSCURE IT AND THE ORIFICES

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RULES THAT APPLY TO ALL TEETH EXCEPT MAXILLARY MOLARS

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1. IF A LINE IS DRAWN IN A MESIAL-DISTAL DIRECTION ACROSS THE CENTER OF THE FLOOR OF THE PULP CHAMBER, THE ORIFICES OF THE CANAL ON EITHER SIDE OF THE LINE ARE EQUIDISTANT
2. IF A LINE IS DRAWN IN A MESIAL-DISTAL DIRECTION CROSS THE CENTER OF THE FLOOR OF THE PULP CHAMBER, THE ORIFICES OF THE CANALS ON EITHER SIDE ARE PERPENDICULAR TO IT

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ANATOMIC LAW REGARDING THE PULP CHAMBER FLOOR

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1. LAW OF SYMMETRY 1
2. LAW OF SYMMETRY 2
3. LAW OF COLOR CHANGE
4. LAW OF ORIFICE LOCATION 1
5. LAW OF ORIFICE LOCATION 2
6. LAW OF ORIFICE LOCATION 3

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AN ANATOMIC LAW REGARDING PULP CHAMBER FLOOR STATES, ORIFICE OF THE CANALS ARE EQUIDISTANT FROM A LINE DRAWN IN A MESIAL-DISTAL DIRECTION THROUGH THE PULP-CHAMBER FLOOR

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1. LAW OF SYMMETRY I

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WHICH ANATOMIC LAW REGARDING PULP CHAMBER FLOOR DO NOT APPLY TO MAXILLARY MOLAR

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1. LAW OF SYMMETRY 1
2. LAW OF SYMMETRY 2

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AN ANATOMIC LAW REGARDING PULP CHAMBER FLOOR STATES, ORIFICES OF THE CANALS LIE ON A LINE PERPENDICULAR TO A LINE IN A MESIAL-DISTAL DIRECTION ACROSS THE CENTER OF THE FLOOR OF THE PULP CHAMBER

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1. LAW OF SYMMETRY 2

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AN ANATOMIC LAW REGARDING PULP CHAMBER FLOOR STATES, COLOR OF THE PULP-CHAMBER FLOOR IS ALWAYS DARKER THAN THE WALL

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1. LAW OF COLOR CHANGE

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A LAW OF PULP CHAMBER FLOOR STATES, ORIFICES OF THE ROOT CANALS ARE ALWAYS LOCATED AT THE JUNCTION OF THE WALLS AND THE FLOOR

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1. LAW OF ORIFICE LOCATION I

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A LAW OF PULP CHAMBER- FLOOR THAT STATES, ORIFICES OF THE ROOT CANALS ARE LOCATED AT THE ANGLES IN THE FLOOR-WALL JUNCTION

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1. LAW OF ORIFICE LOCATION II

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A LAW OF PULP CHAMBER- FLOOR THAT STATES, ORIFICES OF THE ROOT CANALS ARE LOCATED AT THE TERMINUS OF THE ROOT DEVELOPMENTAL FUSION LINES

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1. LAW OF ORIFICE LOCATION III

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MOST RELIABLE GUIDE FOR ACCESS AND LOCATING PULP CHAMBER

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1. CEJ

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A LAW OF PULP CHAMBER-CLINICAL CROWN THAT PREVENT CROWN PERFORATION IN A LATERAL DIRECTION

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1. LAW OF CENTRALITY

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A LAW OF PULP CHAMBER-CLINICAL CROWN THAT HELP EXTEND ACCESS PROPERLY

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1. LAW OF CONCENTRICITY

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LAWS USED TO LOCATE THE EXACT POSITION AND NUMBER OF ORIFICES

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1. LAWS OF SYMMETRY (I,II)
2. LAW OF ORIFICES

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A LAW OF PULP CHAMBER-FLOOR THAT DETERMINING THE EXACT POSITION OF CANALS AND PRESENCE OF AN ADDITIONAL UNEXPECTED CANAL

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1. LAWS OF SYMMETRY

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A LAW THAT INDICATE THE PRESENCE OF FOUTH CANALS

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1. LAW OR SYMMETRY I,II

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A LAW OF PULP CHAMBER-FLOOR USED TO DEENTIFY THE NUMBER AND POSITION OF THE ROOT-CANAL ORIFICES OF THE TOOTH

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1. LAW OF ORIFICE LOCATION I, II

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LAW OF PULP CHAMBER-FLOOR HELP TO FOCUS ON THE PRECISE LOCATION OF THE ORIFICES

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1. LAW OF ORIFICE LOCATION II

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LAWS THAT ARE OFTEN THE ONLY RELIABLE INDICATOR OF THE PRESENCE AND LOCATION OF SECOND CANALS IN MESIOBUCCAL ROOTS OF MAXILLARY MOLARS

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1. LAW OF ORIFICE LOCATION I,II
2, LAW OF COLOR CHANGE

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LAWS THAT INDICATE THE PRESENCE OF A MESIO-PALATAL ORIFICE

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1. LAWS OF ORIFICE LOCATION I,II

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LAWS THAT APPLY TO ANY TOOTH

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1. LAW OF SYMMETRY 1,II
2. LAW OF COLOR CHANGE
3. LAW OF ORIFICE LOCATION I,II

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TEETH THAT ARE EXCEPTION IN LAWS AND ARE DEVIANT

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1. MANIBULAR SECOND MOLAR
2. MANIBULAR THIRD MOLAR

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TEETH W/ C-SHAPED CANAL ANATOMY

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1. MANIBULAR SECOND MOLAR
2. MANIBULAR THIRD MOLAR

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LAWS THAT APPLY TO MANDIBULAR SECOND AND THIRD MOLARS

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1. LAW OF COLOR CHANGE
2. LAW OF ORIFICE LOCATION I

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LAW THAT ARE NOT OBSERVED IN MANDIBULAR SECOND AND THIRD MOLARS

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1. LAW OF SYMMETRY I, II
2. LAW OF ORIFICE LOCATION II, III