Operative Dentistry

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Operative Dentistry Knowledge Check

Test your understanding of operative dentistry concepts with this engaging quiz designed for dental professionals and students alike. Dive into essential topics including cavity preparation, material properties, and restoration techniques.

Participate to enhance your knowledge and ensure the best practices in dental care!

  • Multiple choice questions
  • Covering key aspects of operative dentistry
  • Ideal for self-assessment and learning
49 Questions12 MinutesCreated by PracticingDentist45
ΑžαžΎαž–αŸαž›αžœαŸαž›αžΆαžŸαž˜αŸ’αžšαŸαž…αž”αžΆαž“αž€αž˜αŸ’αž˜-αž’αŸ†αž–αžΎαž–αž“αŸ’αž›αžΊ (Curing light)αžšαž”αžŸαŸ‹αžαŸ’αž“αžΆαŸ† Compositeαž’αžΆαžŸαŸ’αžšαŸαž™αž›αžΎαž€αžαŸ’αžαžΆαž’αŸ’αžœαžΈαžαŸ’αž›αŸ‡?
Αž‡αžΈαžœαŸˆαžŸαžΆαžŸαŸ’αžαŸ’αžšαžŸαŸ’αžšαž‘αžΆαž”αŸ‹αž’αŸ’αž˜αŸαž‰
Αž…αž˜αŸ’αž„αžΆαž™αž“αž·αž„αž˜αž»αŸ†
αžŸαžΆαžšαž’αžΆαžαž»αžšαžΆαžœαžŸαŸ’αž’αž·αž
ΑžŸαžšαžΈαžšαŸˆαžŸαžΆαžŸαŸ’αžαŸ’αžšαž’αŸ’αž˜αŸαž‰
Αž‘αŸ’αžšαž„αŸ‹αž‘αŸ’αžšαžΆαž™αž”αŸ’αžšαž’αž”αŸ‹ Cavity class III by Dr. Black αžšαžΆαž„αž€αž“αŸ’αž‘αž»αž™αž€αŸ†αž”αŸ’αžšαž»αž€ (Dove tail) αžŸαžΆαž„αžŸαž„αŸ‹αžœαž·αž‰αžŠαŸ„αž™αžαŸ’αž“αžΆαŸ† Composite αž˜αž½αž™αžšαž™αŸˆαž–αŸαž›αž™αžΌαžšαž€αŸ’αžšαŸ„αž™αž˜αž€ αžαžΎαžœαžΆαž”αž„αŸ’αž€αž αžΆαž“αž·αž—αŸαž™αž’αŸ’αžœαžΈαžαŸ’αž›αŸ‡?
αž˜αž·αž“αž’αž“αŸ‹αž€αŸ†αž›αžΆαŸ†αž„αž”αŸ‰αŸ‡
Αž˜αž·αž“αž‘αžΆαž€αŸ‹αž‡αžΆαž”αŸ‹αžαŸ’αž“αžΆαŸ†αž”αžΆαž“αž™αžΌαžš
Αž€αŸ†αžŽαžΎαž“αžαž»αžŸαž€αŸ†αžŽαžΆαŸ†αž’αŸ’αž˜αŸαž‰αž”αŸ’αžšαžˆαž˜
Αž”αž„αŸ’αž€αž‡αžΆαž‡αŸ†αž„αžΊαžšαž›αžΆαž€αž’αž‰αŸ’αž…αžΆαž‰
Αž€αžΆαžšαž€αžΆαžαŸ‹αž…αŸ’αžšαžΉαž”-αž”αž‰αŸ’αž†αž·αžαž‚αŸ‚αž˜-រឹម ( Bevel cavo-surface) αž”αŸ’αžšαž’αž”αŸ‹Cavities αž“αŸ…αžŸαŸ’αžšαž‘αžΆαž”αŸ‹αž€αžΆαž…αžΆαž’αŸ’αž˜αŸαž‰ αžαžΎαž€αž˜αŸ’αžšαž·αžαž˜αž»αŸ†αž”αŸ‰αž»αž“αŸ’αž˜αžΆαž“αžŠαžΊαž€αŸ’αžšαŸαžŠαŸ‚αž›αž”αž„αŸ’αž€αž αžΆαž“αž·αž—αŸαž™αžαŸ’αž›αžΆαŸ†αž„αž”αŸ†αž•αž»αžαžŠαž›αŸ‹αžŸαŸ’αžšαž‘αžΆαž”αŸ‹ prisms?
900αžŠαžΊαž€αŸ’αžšαŸ
600αžŠαžΊαž€αŸ’αžšαŸ
450αžŠαžΊαž€αŸ’αžšαŸ
1350αžŠαžΊαž€αŸ’αžšαŸ
Αž€αžΆαžšαž€αžΆαžαŸ‹αž…αŸ’αžšαžΉαž”-αž”αž‰αŸ’αž†αž·αžαž‚αŸ‚αž˜-រឹម ( Bevel cavo-surface) αž”αŸ’αžšαž’αž”αŸ‹Cavities αž“αŸ…αžŸαŸ’αžšαž‘αžΆαž”αŸ‹αž€αžΆαž…αžΆαž’αŸ’αž˜αŸαž‰αžšαž αžΌαžαž˜αž»αŸ†1350αžŠαžΊαž€αŸ’αžšαŸ αžαžΎαž αŸαžαž»αž•αž›αž’αŸ’αžœαžΈαž”αžΆαž“αž‡αžΆαž‚αŸαžαžΆαžŸαŸ’αžšαž‘αžΆαž”αŸ‹ Enamel prisms αžšαž„αž•αž›αž”αŸ‰αŸ‡αž–αžΆαž›αŸ‹αžαž·αž…αžαž½αž…αž“αŸ…αž‘αžΎαž™ ?
Αž”αŸ’αžšαŸ€αž”αžŠαžΌαž…αžŠαžΎαž˜αžˆαžΎαž˜αž½αž™αžŠαžΎαž˜αž’αŸ†αž€αžΆαžαŸ‹αž¬αžŸαž€αŸ‚αžœαž…αŸαž‰
αž”αŸ’αžšαŸ€αž”αžŠαžΌαž…αžŠαžΎαž˜αžˆαžΎαž˜αž½αž™αžŠαžΎαž˜αž’αŸ†αž€αžΆαžαŸ‹αžŸαŸ†αž”αž€αž…αŸαž‰
αž”αŸ’αžšαŸ€αž”αžŠαžΌαž…αžŠαžΎαž˜αžˆαžΎαž˜αž½αž™αžŠαžΎαž˜αž’αŸ†αž€αžΆαžαŸ‹αž˜αŸ‚αž€αž…αŸαž‰
Αž”αŸ’αžšαŸ€αž”αžŠαžΌαž…αžŠαžΎαž˜αžˆαžΎαž˜αž½αž™αžŠαžΎαž˜αž’αŸ†αž€αžΆαžαŸ‹αžŸαŸ’αž›αžΉαž€αž…αŸαž‰
Αž αŸαžαž»αž’αŸ’αžœαžΈαž”αžΆαž“αž‡αžΆαžœαž·αž’αžΈαžŸαžΆαžŸαŸ’αžαŸ’αžšαžαž½αž„αž¬αž…αŸ„αŸ‡αžŠαžΆαž€αŸ‹αž›αŸ„αž αŸˆ(Incrustation metallic) αž”αž…αŸ’αž…αž»αž”αŸ’αž”αž“αŸ’αž“αž˜αž·αž“αžŸαžΌαžœαž’αž“αž»αžœαžαŸ’αžαž’αŸ’αžœαžΎ?
Αž˜αž·αž“αž˜αžΆαž“αžŸαž˜αŸ’αž—αžΆαžšαŸˆαž›αž€αŸ‹αž“αŸ…αž‘αžΈαž•αŸ’αžŸαžΆαžš
ΑžαžΆαžαž”αž„αŸ‹αžŸαŸ’αžšαž‘αžΆαž”αŸ‹αž’αŸ’αž˜αŸαž‰αž›αŸ’αž’αž…αŸ’αžšαžΎαž“
αž’αžΆαž…αž†αžΆαž”αŸ‹αž‡αŸ’αžšαžΆαž”αž‘αžΉαž€-αž”αž„αŸ’αž€αž…αŸ’αžšαŸαŸ‡
Αž…αžΆαŸ†αž„αž†αŸ’αž›αž»αŸ‡αž›αŸ„αž αŸˆ
Αžœαž·αž’αžΈαžŸαžΆαžŸαŸ’αžαŸ’αžšαžαž½αž„αž¬αž…αŸ„αŸ‡αžŠαžΆαž€αŸ‹αžαŸ’αž…αŸ…( Pin) αž“αŸ…αž’αŸ’αž˜αŸαž‰αž˜αž»αž αž αŸαžαž»αž’αŸ’αžœαžΈαž”αž…αŸ’αž…αž»αž”αŸ’αž”αž“αŸ’αž“αž˜αž·αž“αžŸαžΌαžœαž’αŸ’αžœαžΎ?
ΑžαžΆαžαž”αž„αŸ‹αžŸαŸ’αžšαž‘αžΆαž”αŸ‹αž’αŸ’αž˜αŸαž‰αž›αŸ’αž’
Αž’αŸ’αžœαžΎαž’αŸ„αž™αž’αŸ’αž˜αŸαž‰αž”αžΆαžαŸ‹αž”αž„αŸ‹αž›αž€αŸ’αžαžŽαŸˆαž˜αŸαž€αžΆαž“αž·αž€
ΑžŸαŸ’αžšαž‘αžΆαž”αŸ‹αž’αŸ’αž˜αŸαž‰αžšαž€αŸ’αžŸαžΆαž‘αž»αž€αž†αžΆαž”αŸ‹αžŸαŸ’αžšαž½αž™
Αž˜αž·αž“αž˜αžΆαž“αžŸαž˜αŸ’αž—αžΆαžšαŸˆαž›αž€αŸ‹αž“αŸ…αž‘αžΈαž•αŸ’αžŸαžΆαžš
Αžœαž·αž’αžΈαžŸαžΆαžŸαŸ’αžαŸ’αžšαžαž½αž„αž¬αž…αŸ„αŸ‡αžŠαžΆαž€αŸ‹αžαŸ’αž…αŸ…( Pin) αžαžΎαž˜αžΌαž›αž αŸαžαž»αž’αŸ’αžœαžΈαžŠαŸ‚αž›αž’αŸ’αžœαžΎαž’αŸ„αž™αžŸαŸ’αžšαž‘αžΆαž”αŸ‹αž’αŸ’αž˜αŸαž‰αžšαž€αŸ’αžŸαžΆαž‘αž»αž€αž†αžΆαž”αŸ‹αžŸαŸ’αžšαž½αž™?
Αž…αŸ„αŸ‡αž¬αžαž½αž„αž”αŸ‰αŸ‡αž–αžΆαž›αŸ‹αž”αžŽαŸ’αžαžΌαž›αžŸαžŸαŸƒαž”αŸ’αžšαžŸαžΆαž‘αž’αŸ’αž˜αŸαž‰
Αž”αžΆαž€αŸ‹αž˜αŸ’αž‡αž»αž›αžαž½αž„αž€αŸ’αž“αž»αž„αžŸαŸ’αžšαž‘αžΆαž”αŸ‹αž’αŸ’αž˜αŸαž‰
ΑžαŸ’αž…αŸ…αžŠαžΆαž€αŸ‹αž”αž‰αŸ’αž…αžΌαž›αžšαž„αŸ’αž‚αžΎ
Αž›αŸ’αž”αžΏαž“αž˜αŸ’αž‡αž»αž›αžαž½αž„αž αž½αžŸαžŠαŸ‚αž“αž€αŸ†αžŽαžαŸ‹
Αž‚αŸ’αžšαŸ„αŸ‡αžαŸ’αž“αžΆαž€αŸ‹αž…αž˜αŸ’αž”αž„αž€αŸ’αž“αž»αž„αžœαž·αž’αžΈαžŸαžΆαžŸαŸ’αžαŸ’αžšαžαž½αž„αž¬αž…αŸ„αŸ‡αžŠαžΆαž€αŸ‹αžαŸ’αž…αŸ…( Pin) αž€αŸ’αž“αž»αž„αž”αŸ’αžšαž’αž”αŸ‹ Cavity αž‚αžΊαž’αŸ’αžœαžΈ?
Αž‘αž·αžŸαžŠαŸ…αžαŸ’αž…αŸ…αž€αŸ‚αž„αž“αžΉαž„αž€αŸ†αžŽαž»αŸ‡αž’αŸ’αž˜αŸαž‰
Αž”αŸ’αžšαŸαŸ‡αžŸαŸ’αžšαžΆαŸ†αžŸαŸ’αžšαž‘αžΆαž”αŸ‹αž’αŸ’αž˜αŸαž‰
Αž‘αž·αžŸαžŠαŸ…αžαŸ’αž…αŸ…αžŸαŸ’αžšαž”αž“αžΉαž„αž€αŸ†αžŽαž»αŸ‡αž’αŸ’αž˜αŸαž‰
Αž”αŸ‰αŸ‡αž–αžΆαž›αŸ‹αž”αŸ’αžšαž’αž”αŸ‹αžŸαžŸαŸƒαž”αŸ’αžšαžŸαžΆαž‘αž’αŸ’αž˜αŸαž‰
Αž€αžΆαžšαžŸαžΆαž„αžŸαž„αŸ‹αž”αŸ’αžšαž’αž”αŸ‹ Class II compound by Dr. Black αžαžΎαžαŸ†αž”αž“αŸ‹αžŽαžΆαžŠαŸ‚αž›αžαŸ’αžšαžΌαžœ αžŠαžΆαž€αŸ‹αžαŸ’αž“αžΆαŸ†αžŸαž˜αŸ’αžšαŸαž…αž˜αž»αž“αž‚αŸαž”αž„αŸ’αž’αžŸαŸ‹?
αž“αŸ…αžαžΆαž„ Occlusal box
αž“αŸ…αžαžΆαž„ Occlusal distal boxes
αž“αŸ…αžαžΆαž„ Occlusal medial boxes
αž“αŸ…αžαžΆαž„ Medial and Distal boxes
Αž’αŸ’αž“αž€αž‡αŸ†αž„αžΊαž˜αŸ’αž“αžΆαž€αŸ‹αž€αŸ’αžšαŸ„αž™αž–αŸαž›αžšαŸ€αž”αž…αŸ†αž”αŸ’αžšαž’αž”αŸ‹ Cavity αž”αž“αŸ’αžŸαž›αŸ‹αžŸαŸ’αžšαž‘αžΆαž”αŸ‹αž—αŸ’αž›αž»αž€αž’αŸ’αž˜αŸαž‰ (dentine) 1mm αž–αžΈαž”αŸ’αžšαž’αž”αŸ‹αž”αžŽαŸ’αžαžΌαž›αž’αŸ’αž˜αŸαž‰(pulp) αž‚αŸαžαŸ’αžšαžΌαžœαžŠαžΆαž€αŸ‹αžαŸ’αž“αžΆαŸ†αž”αžŽαŸ’αžαŸ„αŸ‡αž’αžΆαžŸαž“αŸ’αž“αž˜αž½αž™αžšαž™αŸˆαž–αŸαž›αžαŸ’αž›αžΈ αž’αŸ’αž“αž€αž‡αŸ†αž„αžΊαžˆαžΊ αžαžΎαž”αžΆαž“αž“αŸαž™αžŠαžΌαž…αž˜αŸ’αžαŸαž…?
Αž”αž„αŸ’αž€αžΎαžαžŸαŸ’αžšαž‘αžΆαž”αŸ‹αž—αŸ’αž›αž»αž€αž’αŸ’αž˜αŸαž‰αž‚αŸ’αžšαž”αŸ‹αž‚αŸ’αžšαžΆαž“αŸ‹
Αž”αž„αŸ’αž€αžΎαžαžŸαŸ’αžšαž‘αžΆαž”αŸ‹αž—αŸ’αž›αž»αž€αž’αŸ’αž˜αŸαž‰αžαŸ’αž›αŸ‡αŸ—
Αž˜αž·αž“αž”αž„αŸ’αž€αžΎαžαžŸαŸ’αžšαž‘αžΆαž”αŸ‹αž—αŸ’αž›αž»αž€αž’αŸ’αž˜αŸαž‰αž‘αžΆαŸ†αž„αžŸαŸ’αžšαž»αž„
Αž”αž„αŸ’αž€αžΎαžαžŸαŸ’αžšαž‘αžΆαž”αŸ‹αž—αŸ’αž›αž»αž€αž’αŸ’αž˜αŸαž‰αž€αŸ’αžšαž·αž“
ΑžαžΎαž›αž€αŸ’αžαžŽαŸˆαžŸαž˜αŸ’αž”αžαŸ’αžαž·αž–αž·αžŸαŸαžŸαžšαž”αžŸαŸ‹αž›αŸ„αž αŸˆ Gallium (Ga) αžŠαŸ‚αž›αž”αŸ’αžšαžΎαž‡αŸ†αž“αž½αžŸαž›αŸ„αž αŸˆαž”αžΆαžšαŸ‰αž(Hg) αž‚αžΊαž’αŸ’αžœαžΈ?
ΑžŸαŸ’αž’αž·αžαž‡αžΆαž”αŸ‹αžαŸ’αž›αžΆαŸ†αž„αž‘αŸ…αž“αžΉαž„αž‡αž‰αŸ’αž‡αžΆαŸ†αž„Cavity
Αž”αŸ’αžšαž‘αžΆαž€αŸ‹αž‡αžΆαž”αŸ‹αžŸαž˜αŸ’αž—αžΆαžšαŸˆαž”αž·αžαž”αŸ‰αŸ‡
αž”αž„αŸ’αž€αžΎαž“αž—αžΆαž–αžšαžΉαž„αž˜αžΆαŸ†-αž’αž“αŸ‹αžŠαž›αŸ‹αžŸαž˜αžΆαžŸαž’αžΆαžαž»αž•αŸ’αžŸαŸαž„αŸ—
Αž”αž„αŸ’αž€αžΎαž“αž—αžΆαž–αžšαžΉαž„αž˜αžΆαŸ†αžŠαž›αŸ‹αžŸαŸ’αžšαž‘αžΆαž”αŸ‹αž’αŸ’αž˜αŸαž‰
Αž€αžΆαžšαž”αŸ’αžšαžΎαž”αŸ’αžšαžΆαžŸαŸ‹αž›αŸ„αž αŸˆ Gallium (Ga) αž‡αŸ†αž“αž½αžŸαž›αŸ„αž αŸˆαž”αžΆαžšαŸ‰αž(Hg) αžαžΎαž‚αŸαž’αžΆαž…αž’αŸ’αžœαžΎαž”αŸ‰αž›αžΆαž“αŸ…αžšαž™αŸˆαž–αŸαž›αž”αŸ‰αž»αž“αŸ’αž˜αžΆαž“ αž”αžΎαž”αŸ’αžšαŸ€αž”αž’αŸ€αž”αž‘αŸ…αž“αžΉαž„αž€αžΆαžšαž›αžΆαž™αž‡αžΆαž˜αž½αž™αž›αŸ„αž αŸˆαž”αžΆαžšαž?
αž”αŸ‰αžΌαž›αžΆαž”αžΆαž“ 1 αž˜αŸ‰αŸ„αž„αž€αŸ’αžšαŸ„αž™
αž”αŸ‰αžΌαž›αžΆαž”αžΆαž“24 αž˜αŸ‰αŸ„αž„αž€αŸ’αžšαŸ„αž™
αž”αŸ‰αžΌαž›αžΆαž”αžΆαž“ 48 αž˜αŸ‰αŸ„αž„αž€αŸ’αžšαŸ„αž™
αž”αŸ‰αžΌαž›αžΆαž”αžΆαž“ 1 αž’αžΆαž‘αž·αžαŸ’αž™αž€αŸ’αžšαŸ„αž™
Αž‘αžΆαŸ†αž„ low copper ឬ high copper αžšαž”αžŸαŸ‹ AmalgamαžŠαŸ‚αž›αž“αžΆαŸ†αž˜αž»αžαž”αŸ†αž•αŸ’αž›αžΆαž‰αžšαž½αž… αž”αž„αŸ’αž€αž‡αžΆαž…αŸ’αžšαŸαŸ‡-αžŸαŸ’αž“αžΉαž˜ (Corrosion)αžŠαŸ„αž™αžŸαžΆαž’αŸ’αžœαžΈ ?
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Αž€αžΆαžšαžšαŸ€αž”αž…αŸ† αž”αŸ’αžšαž’αž”αŸ‹ Cavity Class I by Dr. Blackαž˜αžΆαž“αž‘αŸ†αž αŸ†αž’αŸ† αžŠαŸ‚αž›αžšαŸ„αž‚αžœαž·αž“αž·αž…αŸ’αž†αŸαž™αž‡αžΆ Dentinite profound αžαžΎαž‚αŸ’αžšαžΌαž–αŸαž‘αŸ’αž™αž’αŸ’αž˜αŸαž‰αžαŸ’αžšαžΌαžœαžšαŸ€αž”αž…αŸ†αž”αŸ’αžšαž’αž”αŸ‹ Cavity αž™αŸ‰αžΆαž„αžŽαžΆ αžŠαžΎαž˜αŸ’αž”αžΈαž€αžΆαžαŸ‹αž”αž“αŸ’αžαž™αž€αžΆαžšαž†αžΆαž”αŸ‹αž”αŸ‚αž€αž”αžΆαž€αŸ‹?
αž™αž€αžŸαŸ’αžšαž‘αžΆαž”αŸ‹αž–αž»αž€αž•αž»αž™αž…αŸαž‰αž’αŸ„αž™αž’αžŸαŸ‹
ΑžŠαžΆαž€αŸ‹αžαŸ’αž“αžΆαŸ†αž”αž·αžαž”αŸ‰αŸ‡αž’αŸ„αž™αž”αžΆαž“αž…αŸ’αžšαžΎαž“
Αž•αŸ’αž‘αŸƒαž”αžΆαžαž˜αžΆαž“αžŸαž—αžΆαž–αžšαžΈαž€αž’αŸ†
Αžšαž€αŸ’αžŸαžΆαžŸαŸ’αžšαž‘αžΆαž”αŸ‹αž€αžΆαž…αžΆαž“αž·αž„αž—αŸ’αž›αž»αž€αž’αŸ’αž˜αŸαž‰αž›αŸ’αž’
Αž…αŸ†αž”αŸ’αžšαž’αž”αŸ‹ cavity class II by Dr. Black αžαžΎαžαŸ†αž”αž“αŸ‹αžŽαžΆαžŠαŸ‚αž›αžšαž„αž€αŸ†αž›αžΆαŸ†αž„-αž‘αž˜αŸ’αž„αž“αŸ‹αž”αŸ‰αž…αŸ†αžαŸ’αž›αžΆαŸ†αž„ αž”αž„αŸ’αž€αž’αŸ„αž™αžαŸ’αž“αžΆαŸ†αž”αž·αžαž”αŸ‰αŸ‡αžŸαž˜αŸ’αžšαŸαž… αž•αŸ’αž›αžΆαž-αžαŸ’αž‘αžΆαžαž…αŸαž‰αž€αŸ’αžšαŸ…?
Line axio-gingival
Line axio-pulpal
Borde cavo-surface
Gingival wall
Αž€αžΆαžšαž•αŸ’αžŸαŸ†αž›αžΆαž™αž”αž‰αŸ’αž…αžΌαž› Calcio metaphosphate αž‘αŸ…αž€αŸ’αž“αž»αž„αžαŸ’αž“αžΆαŸ† Compositeαž’αŸ’αžœαžΎαž’αŸ„αž™αž˜αžΆαž“αž‚αž»αžŽαžŸαž˜αŸ’αž”αžαŸ’αžαž·αž’αŸ’αžœαžΈαžαŸ’αž›αŸ‡?
Αž†αžΆαž”αŸ‹αžšαžΉαž„αž–αŸαž›αž”αŸ‰αŸ‡αž“αžΉαž„αž€αžΆαŸ†αžšαžŸαŸ’αž˜αžΈ
Αž’αž„αŸ’αž‚αž›αŸ’αž’αž·αžαžαžΌαž…αŸ—αž”αž“αŸ’αžŸαŸŠαžΈαžαž‡αžΆαž”αŸ‹αž‚αŸ’αž“αžΆ
Αž˜αž·αž“αžŸαžΉαž€αž›αžΏαž“αžŸαž˜αŸ’αžšαžΆαž”αŸ‹αž’αŸ’αž˜αŸαž‰αž”αŸ’αžšαžˆαž˜
ΑžŸαŸ’αž’αž·αžαž‡αžΆαž”αŸ‹αžαŸ’αž›αžΆαŸ†αž„αž‘αŸ…αž“αžΉαž„αžŸαŸ’αžšαž‘αžΆαž”αŸ‹αž’αŸ’αž˜αŸαž‰
Αž€αžΆαžšαž…αž˜αŸ’αžšαžΆαž‰αŸ‹αž™αž€αž’αŸŠαžΈαž™αŸ‰αž»αž„ Strontium ឬ Barium αž•αŸ’αžŸαŸ†αž‡αžΆαž˜αž½αž™αžŸαž˜αžΆαžŸαž’αžΆαžαž»αž•αŸ’αžŸαŸαž„αŸ—αžŠαžΎαž˜αŸ’αž”αžΈαž”αž„αŸ’αž€αžΎαžαžαŸ’αž“αžΆαŸ† Composite αžαžΎαžœαžΆαž•αŸ’αžαž›αŸ‹αž’αžαŸ’αžαž”αŸ’αžšαž™αŸ„αž‡αž“αŸαž’αŸ’αžœαžΈαžαŸ’αž›αŸ‡?
Αž˜αž·αž“αž„αžΆαž™αž”αŸ’αžαžΌαžšαž–αžŽαŸŒαž’αŸ’αž˜αŸαž‰
Αž˜αž·αž“αž„αžΆαž™αž‡αŸ’αžšαžΆαž”αž‘αžΉαž€
Αž€αžΆαžαŸ‹αž”αž“αŸ’αžαž™αžšαž™αŸˆαž–αŸαž›αžšαžΉαž„
Αž€αžΆαžαŸ‹αž”αž“αŸ’αžαž™αž”αŸ’αžšαžαž·αž€αž˜αŸ’αž˜
ΑžαžΎαžαŸ’αž“αžΆαŸ† Composite αž˜αžΆαž“αž›αž€αŸ’αžαžŽαŸˆαžŠαžΌαž…αž˜αŸ’αžαŸαž… αžŠαŸ‚αž›αž˜αžΆαž“αžœαž·αžŸαžΆαž›αž—αžΆαž–αž›αŸ’αž’αž”αŸ’αžšαžŸαžΎαž€αŸ’αžšαŸ„αž™αž–αŸαž›αžšαž„αž₯αž‘αŸ’αž’αž·αž–αž›αž–αž“αŸ’αž›αžΊ?
αžαŸ’αž“αžΆαŸ† Composite αžŠαŸ‚αž›αž˜αžΆαž“αž€αŸ†αž αžΆαž”αŸ‹-αž‘αž˜αŸ’αž„αž“αŸ‹
αžαŸ’αž“αžΆαŸ† Composite αž–αžŽαŸŒαžŸαŸ’αžšαž’αžΆαž”αŸ‹
αžαŸ’αž“αžΆαŸ† Composite αžŠαŸ‚αž›αž˜αžΆαž“αž”αž‰αŸ’αž…αžΌαž›αž’αŸŠαžΈαž™αŸ‰αž»αž„αž›αŸ„αž αŸˆ
αžαŸ’αž“αžΆαŸ† Composite αžŠαŸ‚αž›αž˜αžΆαž“αž”αž‰αŸ’αž…αžΌαž›αž’αž„αŸ’αž‚αž›αŸ’αž’αž·αžαž†αŸ’αž˜αžΆαŸ—αž…αŸ’αžšαžΎαž“
Αž‚αŸ’αžšαž”αŸ‹αž”αŸ’αžšαž’αž”αŸ‹ cavityαžšαž”αžŸαŸ‹Dr. Black αž€αŸ’αžšαŸ„αž™αž€αžΆαžšαžŸαžΆαž„αžŸαž„αŸ‹ ឝើαž₯αž‘αŸ’αž’αž·αž–αž›αž€αŸ†αž›αžΆαŸ†αž„-αž‘αž˜αŸ’αž„αž“αŸ‹-αžŸαž˜αŸ’αž–αžΆαž’ αžαŸ’αž›αžΆαŸ†αž„αž€αŸ’αž›αžΆαž αž½αžŸαžŠαŸ‚αž“αž€αŸ†αžŽαžαŸ‹αž’αŸ’αžœαžΈαžŠαŸ‚αž›αž”αž„αŸ’αž€αž€αžΆαžšαž”αŸ‚αž€αž”αžΆαž€αŸ‹αžŠαž›αŸ‹αžŸαŸ’αžšαž‘αžΆαž”αŸ‹αž’αŸ’αž˜αŸαž‰αžαžΆαž„αž€αŸ’αžšαŸ…?
αžŸαž˜αŸ’αž–αžΆαž’ Compresion loading
αžŸαž˜αŸ’αž–αžΆαž’ Torsion loading
αžŸαž˜αŸ’αž–αžΆαž’ Tension loading
αžŸαž˜αŸ’αž–αžΆαž’ Flexion loading
Αž–αŸαž›αžšαŸ€αž”αž…αŸ†αž”αŸ’αžšαž’αž”αŸ‹ cavity αžŸαž˜αŸ’αžšαžΆαž”αŸ‹αž€αžΆαžšαžŠαžΆαž€αŸ‹αž›αŸ„αž αŸˆαž‡αŸ†αž“αž½αžŸ (Incrustation matalic) αžαžΎαž€αžΆαžšαž€αžΆαžαŸ‹αž…αŸ’αžšαžΉαž”αž‚αŸ‚αž˜αž¬ រឹម αž“αŸ…αžŸαŸ’αžšαž‘αžΆαž”αŸ‹αž€αžΆαž…αžΆαž’αŸ’αž˜αŸαž‰(Bevel enamel)αž’αžΆαž…αž’αŸ’αžœαžΎαž”αžΆαž“αž€αž˜αŸ’αžšαž·αžαž”αŸ‰αž»αž“αŸ’αž˜αžΆαž“αžŠαžΊαž€αŸ’αžšαŸ?
αž€αžΆαžαŸ‹αž…αŸ’αžšαžΉαž”αž€αŸ’αž“αž»αž„αž€αž˜αŸ’αžšαž·αž 90αžŠαžΊαž€αŸ’αžšαŸ
αž€αžΆαžαŸ‹αž…αŸ’αžšαžΉαž”αž€αŸ’αž“αž»αž„αž€αž˜αŸ’αžšαž·αž 45αžŠαžΊαž€αŸ’αžšαŸ
αž€αžΆαžαŸ‹αž…αŸ’αžšαžΉαž”αž€αŸ’αž“αž»αž„αž€αž˜αŸ’αžšαž·αž 135αžŠαžΊαž€αŸ’αžšαŸ
αž€αžΆαžαŸ‹αž…αŸ’αžšαžΉαž”αž€αŸ’αž“αž»αž„αž€αž˜αŸ’αžšαž·αž 180αžŠαžΊαž€αŸ’αžšαŸ
ΑžαŸ’αž“αžΆαŸ† Amalgam αžŠαŸ‚αž›αžŸαžΆαž„αžŸαž„αŸ‹αž’αŸ’αž˜αŸαž‰αžŠαŸ„αž™αž”αŸ’αžšαž–αŸαž“αŸ’αž’αžŸαžΆαžšαž’αžΆαžαž»αžŸαŸ’αž’αž·αž(Bonding system)αžŸαž˜αŸ’αžšαžΆαž”αŸ‹αž”αŸ’αžšαž’αž”αŸ‹ Cavity αžŠαŸ‚αž›αž˜αžΆαž“αž›αž€αŸ’αžαžŽαŸˆ-αž‚αŸ’αžšαŸ„αž„ αžŠαžΌαž…αž˜αŸ’αžαŸαž…?
αžŸαž˜αŸ’αžšαžΆαž”αŸ‹αž”αŸ’αžšαž’αž”αŸ‹ Cavity αž‘αŸ†αž αŸ†αž’αŸ†
αžŸαž˜αŸ’αžšαžΆαž”αŸ‹αž”αŸ’αžšαž’αž”αŸ‹ Cavity αž‘αŸ†αž αŸ†αžαžΌαž…
αž–αŸαž›αžŸαžΆαž„αžŸαž„αŸ‹αž‡αžΆαž˜αž½αž™ High copper
αž–αŸαž›αžŸαžΆαž„αžŸαž„αŸ‹αž‡αžΆαž˜αž½αž™ Low copper
Αž€αžΆαžšαžŸαžΆαž„αžŸαž„αŸ‹αž’αŸ’αž˜αŸαž‰αžŠαŸ‚αž›αž’αž“αž»αžœαžαŸ’αžαžœαž·αž’αžΈαžŸαžΆαžŸαŸ’αžαŸ’αžšαžŠαŸ„αž™αž”αŸ’αžšαž–αŸαž“αŸ’αž’αžŸαžΆαžšαž’αžΆαžαž»αžŸαŸ’αž’αž·αž(Bonding system) αž˜αž·αž“αžαŸ’αžšαžΉαž˜αžαŸ’αžšαžΌαžœ αžαžΎαžœαžΆαž”αž„αŸ’αž€αž•αž›αž’αŸ’αžœαžΈαž“αŸ…αž–αŸαž›αž€αŸ’αžšαŸ„αž™?
Αž†αžΆαž”αŸ‹αž”αŸ‚αž€αž”αžΆαž€αŸ‹αžαŸ’αž“αžΆαŸ†
Αž’αž“αž»αž‰αŸ’αž‰αžΆαžαž€αžΆαžšαž‡αŸ’αžšαžΆαž”αž‘αžΉαž€
Αž”αž„αŸ’αž€αžΎαž“αž—αžΆαž–αž‘αžΆαž€αŸ‹αž‡αžΆαž”αŸ‹
Αž†αžΆαž”αŸ‹αž”αŸ’αžαžΌαžšαž–αžŽαŸŒαžαŸ’αž“αžΆαŸ†
ΑžαžΎ Tag formation αž˜αžΆαž“αž›αž€αŸ’αžαžŽαŸˆαžŸαž˜αŸ’αž”αžαŸ’αžαž·αž’αŸ’αžœαžΈαžαŸ’αž›αŸ‡ αž€αŸ’αž“αž»αž„αž€αžΆαžšαžŸαžΆαž„αžŸαž„αŸ‹αž’αŸ’αž˜αŸαž‰?
αž›αž€αŸ’αžαžŽαŸˆαž’αž»αž”αž‘αž·αž€-αž–αž“αŸ’αž›αžΊ
αž›αž€αŸ’αžαžŽαŸˆαž€αŸ†αž αžΆαž”αŸ‹
αž›αž€αŸ’αžαžŽαŸˆαž‡αžΈαžœαŸˆ-αž˜αŸαž€αžΆαž“αž·αž€
αž›αž€αŸ’αžαžŽαŸˆαžšαŸ†αž–αžΎαž€-αžšαŸ†αž™αŸ„αž‚
Αž€αžΆαžšαžŸαžΆαž„αžŸαž„αŸ‹αž‚αŸ’αžšαž”αŸ‹αž”αŸ’αžšαž’αž”αŸ‹ cavityαžŠαžΎαž˜αŸ’αž”αžΈαž€αžΆαžαŸ‹αž”αž“αŸ’αžαž™αž—αžΆαž–αž”αžšαžΆαž‡αŸαž™ αžαžΎαž‘αž“αŸ’αžαž”αžŽαŸ’αžŒαž·αžαžαŸ’αžšαžΌαžœαž’αž“αž»αžœαžαŸ’αžαžŠαžΌαž…αž˜αŸ’αžαŸαž…αžαŸ’αž›αŸ‡?
ΑžαŸ’αžšαžΌαžœαž˜αžΆαž“αž’αž“αžΆαž˜αŸαž™αž‡αžΆαž“αž·αž…αŸ’αž…
Αž”αŸ†αž–αŸαž‰αž€αžΆαžšαž„αžΆαžšαžαžΆαž˜αžŠαŸ†αž”αžΌαž“αŸ’αž˜αžΆαž“
αž”αŸ’αžšαžΎαž–αŸαž›αžœαŸαž›αžΆαžšαž™αŸˆαž–αŸαž›αžαŸ’αž›αžΈ
αž”αŸ’αžšαž’αž”αŸ‹ cavityαž˜αžΆαž“αž‡αž˜αŸ’αžšαŸ…αž‡αŸ’αžšαŸ…
Αž€αžΆαžšαžšαŸ€αž”αž…αŸ†αž”αŸ’αžšαž’αž”αŸ‹ cavity αž•αŸ’αž‘αŸƒαž”αžΆαžαžαžΆαž„αž€αŸ’αžšαŸ„αž˜αžšαžΈαž€αžαŸ’αž›αžΆαŸ†αž„αž–αŸαž€ αžαžΎαž˜αž½αž™αžšαž™αŸˆαž–αŸαž›αž€αŸ’αžšαŸ„αž™αž αŸαžαž»αž’αŸ’αžœαžΈαž”αžΆαž“αž‡αžΆαžŸαŸ’αžšαž‘αžΆαž”αŸ‹ αž€αžΆαž…αžΆαž’αŸ’αž˜αŸαž‰αžαžΆαž„αž›αžΎαž”αŸ’αžαžΌαžšαž–αžŽαŸŒ?
αžŠαžΌαž…αž”αžΆαž“αž€αžΆαžαŸ‹αž˜αŸ‚αž€-αž’αžΆαž„αž“αŸƒ Enamel prisms
αžŠαžΌαž…αž”αžΆαž“αž€αžΆαžαŸ‹αž˜αŸ‚αž€-αž’αžΆαž„-αžŠαžΎαž˜αž“αŸƒ Enamel prisms
αžŠαžΌαž…αž”αžΆαž“αž€αžΆαžαŸ‹αž¬αžŸαž€αŸ‚αžœαž“αŸƒ Enamel prisms
Αž˜αž·αž“αž”αžΆαž“αžŠαžΆαž€αŸ‹αžαŸ’αž“αžΆαŸ†αž‘αŸ’αžšαžΆαž”αŸ‹αž”αžΆαž
Αž€αžΆαžšαžšαŸ€αž”αž…αŸ†αž‚αŸ’αžšαž”αŸ‹αž”αŸ’αžšαž’αž”αŸ‹ cavity αžŸαž˜αŸ’αžšαžΆαž”αŸ‹αž”αž·αžαžαŸ’αž“αžΆαŸ† Composite αž˜αž»αŸ† αžαŸ†αž”αž“αŸ‹αžšαžΉαž˜ αž‚αŸ‚αž˜ (Cavo-surface angle) αžαŸ’αžšαžΌαžœαž’αŸ’αžœαžΎαž”αŸ‰αž»αž“αŸ’αž˜αžΆαž“αžŠαžΊαž€αŸ’αžšαŸαž‡αžΆαž€αžΆαžšαž”αŸ’αžšαžŸαžΎ?
αžαŸ’αžšαžΉαž˜αžαŸ’αžšαžΌαžœ 35αžŠαžΊαž€αŸ’αžšαŸ
αžαŸ’αžšαžΉαž˜αžαŸ’αžšαžΌαžœ 45αžŠαžΊαž€αŸ’αžšαŸ
αžαŸ’αžšαžΉαž˜αžαŸ’αžšαžΌαžœ 70αžŠαžΊαž€αŸ’αžšαŸ
αžαŸ’αžšαžΉαž˜αžαŸ’αžšαžΌαžœ 90αžŠαžΊαž€αŸ’αžšαŸ
Αž€αžΆαžšαžšαŸ€αž”αž…αŸ† αž”αŸ’αžšαž’αž”αŸ‹ cavity αž€αŸ’αž“αž»αž„αž…αŸ†αžŽαžΆαžαŸ‹αžαŸ’αž“αžΆαž€αŸ‹αž‘αžΈαŸ£αžŠαŸ‚αž›αž˜αžΆαž“αžšαžΆαž„αž€αž“αŸ’αž‘αž»αž™αž€αŸ†αž”αŸ’αžšαž»αž€(Dove tail) αž…αŸ’αžšαžΎαž“αž’αž“αž»αžœαžαŸ’αžαž“αŸ…αž–αŸαž›αžŽαžΆ?
Αž’αŸ’αž˜αŸαž‰αž€αŸ’αžšαŸ„αž™αž–αŸ’αž™αžΆαž”αžΆαž›αžšαž“αŸ’αž’αž¬αžŸ
αž’αŸ’αž˜αŸαž‰αžαŸ’αžšαžΌαžœαž€αžΆαžšαžŸαŸ„αž—αŸαžŽαž—αžΆαž–
Αž’αŸ’αž˜αŸαž‰αžŸαžΉαž€αžšαž·αž€αžšαžΉαž›αžαŸ’αž›αžΆαŸ†αž„
Αž’αŸ’αž˜αŸαž‰αž’αŸ’αž“αž€αž‡αŸ†αž„αžΊαž˜αžΆαžαŸ‹αž€αžαŸ’αžœαž€αŸ‹
ΑžšαžΆαž›αŸ‹αž€αžΆαžšαžŸαžΆαž„αžŸαž„αŸ‹αž”αŸ’αžšαž’αž”αŸ‹ Cavity class I αžŠαŸ‚αž›αž‚αž·αžαž–αžΈαž€αž˜αŸ’αžšαžΆαžŸαŸ‹αžαŸ’αž“αžΆαŸ† αžαžΎαž‚αŸ„αž›αž€αžΆαžšαžŽαŸαž‚αŸ’αžšαž·αŸ‡αž“αŸƒαž’αŸ’αž“αžΉαž˜ (Principle of the beam) αž…αŸ‚αž„αžŠαžΌαž…αž˜αŸ’αžαŸαž…?
αž•αŸ’αž‘αŸƒαžαžΆαž„αž›αžΎαžαžΌαž…αž‡αžΆαž„αž•αŸ’αž‘αŸƒαžαžΆαž„αž€αŸ’αžšαŸ„αž˜ αž€αžΆαž“αŸ‹αžαŸ‚αž’αž“αŸ‹-αžšαžΉαž„αž˜αžΆαŸ†
αž•αŸ’αž‘αŸƒαžαžΆαž„αž›αžΎαž’αŸ†αž‡αžΆαž„αž•αŸ’αž‘αŸƒαžαžΆαž„αž€αŸ’αžšαŸ„αž˜ αž€αžΆαž“αŸ‹αžαŸ‚αž’αž“αŸ‹-αžšαžΉαž„αž˜αžΆαŸ†
αž•αŸ’αž‘αŸƒαžαžΆαž„αž›αžΎαžŸαž˜αžΆαž˜αžΆαžαŸ’αžšαž•αŸ’αž‘αŸƒαžαžΆαž„αž€αŸ’αžšαŸ„αž˜ αž€αžΆαž“αŸ‹αžαŸ‚αž’αž“αŸ‹-αžšαžΉαž„αž˜αžΆαŸ†
αž‡αž˜αŸ’αžšαŸ…αž€αžΆαž“αŸ‹αžαŸ‚αž‡αŸ’αžšαŸ… αž€αžΆαž“αŸ‹αžαŸ‚αž’αž“αŸ‹-αžšαžΉαž„αž˜αžΆαŸ†
ΑžŸαž˜αŸ’αž–αžΆαž’-αž—αžΆαž–αžαžΆαž“αžαžΉαž„αž“αŸƒαž’αŸ’αž“αžΉαž˜-αž‘αž˜αŸ’αžšαž’αž˜αŸ’αž˜αžαžΆ ( Compresion on simple beam) αžαžΎαž‚αŸαžŸαž“αŸ’αž˜αžαž™αž€αžαŸ†αž”αž“αŸ‹αž‡αžΆαž‘αžΈαžαžΆαŸ†αž„αž’αž–αŸ’αž™αžΆαž€αŸ’αžšαž·αž?
αžαŸ†αž”αž“αŸ‹-αž‘αžΈαžαžΆαŸ†αž„αžŠαŸ‚αž›αž€αŸ†αž›αžΆαŸ†αž„-αž‘αž˜αŸ’αž„αž“αŸ‹αž”αŸ‰αŸ‡αž‚αŸ’αž“αžΆ
αžαŸ†αž”αž“αŸ‹-αž‘αžΈαžαžΆαŸ†αž„αž€αžŽαŸ’αžαžΆαž›αž“αŸƒαžšαž™αŸˆαž•αŸ’αž‘αŸƒαžαŸ’αž“αžΆαŸ†
αžαŸ†αž”αž“αŸ‹-αž‘αžΈαžαžΆαŸ†αž„αžαžΆαž„αž…αž»αž„-αž‚αŸ‚αž˜αž•αŸ’αž‘αŸƒαžαŸ’αž“αžΆαŸ†
αžαŸ†αž”αž“αŸ‹-αž‘αžΈαžαžΆαŸ†αž„αž•αŸ’αž‘αŸƒαžαžΆαž„αž€αŸ’αžšαŸ„αž˜αž•αŸ’αž‘αŸƒαžαŸ’αž“αžΆαŸ†
Αž€αŸ’αž“αž»αž„αž€αžΆαžšαžŸαžΆαž„αžŸαž„αŸ‹ M.O.D αžαžΎαž…αžΆαžαŸ‹αž‘αž»αž€αž…αžΌαž›αž€αŸ’αž“αž»αž„αž”αŸ’αžšαž—αŸαž‘αž’αŸ’αž“αžΉαž˜(Beam) αž˜αž½αž™αžŽαžΆ?
Simple beam
Single beam
Beam free end
Fixed at both end
ΑžŸαžŽαŸ’αž‹αžΆαž“-αžšαžΌαž”αžšαžΆαž„(Conformation) αž‚αŸ’αžšαž”αŸ‹αž”αŸ’αžšαž’αž”αŸ‹ Cavities αžŠαŸ‚αž›αž˜αž·αž“αž˜αžΆαž“αž—αžΆαž–αžŸαŸ’αžšαž‘αžΌαž“ αžαžΎαžαŸ†αž”αž“αŸ‹αžŽαžΆαžŠαŸ‚αž›αžšαž„αž•αž› αž”αŸ’αžšαŸαŸ‡-αžŸαŸ’αžšαžΆαŸ†αž˜αž»αž“αž‚αŸ?
ΑžαŸ†αž”αž“αŸ‹αžšαž™αŸˆαž˜αž»αŸ†αž€αŸ„αž„
ΑžαŸ†αž”αž“αŸ‹αžšαž™αŸˆαž˜αž»αŸ†αž€αŸ‚αž„
ΑžαŸ†αž”αž“αŸ‹αžšαž™αŸˆαž˜αž»αŸ†αžαŸ’αžšαž„αŸ‹
ΑžαŸ†αž”αž“αŸ‹αžšαž™αŸˆαž˜αž»αŸ†αž•αŸ’αžαŸαž€
Αž€αŸ’αž“αž»αž„αž…αŸ†αžŽαŸ„αž˜αž‚αŸ’αžšαŸ„αž„-αžŸαžŽαŸ’αž‹αžΆαž“αž“αŸƒαž‡αž˜αŸ’αžšαŸ… (Profondisation form) αž”αŸ’αžšαž’αž”αŸ‹ Cavity class I by Dr. Black αž˜αž½αž™αžŽαžΆαžŠαŸ‚αž›αž˜αžΆαž“αž”αŸ’αžšαžŸαž·αž‘αŸ’αž’αž—αžΆαž–αž”αŸ†αž•αž»αž?
Αž‡αž˜αŸ’αžšαŸ…αžšαžΆαž€αŸ‹αž‡αžΆαž„αž•αŸ’αž‘αŸƒαžαžΆαž„αž›αžΎ
Αž‡αž˜αŸ’αžšαŸ…αžŸαŸ’αž˜αžΎαž“αžΉαž„αž•αŸ’αž‘αŸƒαžαžΆαž„αž›αžΎ
Αž‡αž˜αŸ’αžšαŸ…αž‡αŸ’αžšαŸ…αžαžΆαž„αž•αŸ’αž‘αŸƒαžαžΆαž„αž›αžΎ
Αž‡αž˜αŸ’αžšαŸ…αžŸαž˜αžΆαž˜αžΆαžαŸ’αžšαž•αŸ’αž‘αŸƒαžαžΆαž„αž›αžΎ
Αž€αŸ’αž“αž»αž„αž€αžΆαžšαžŸαžΆαž„αžŸαž„αŸ‹αž’αŸ’αž˜αŸαž‰αžαŸ’αž‚αžΆαž˜αž’αŸ† αžαžΎαž€αŸ†αž–αž€ Cusp αž˜αžΆαž“αž€αž˜αŸ’αž˜-αž’αŸ†αž–αžΎαž’αŸ’αžœαžΈαž‡αžΆαž˜αž½αž™αž’αŸ’αž˜αŸαž‰αž”αŸ’αžšαžˆαž˜?
αž”αŸ‰αŸ‡-αž€αž€αž·αžαž…αŸ†αž€αŸ†αž–αž€ Cusp αž˜αž½αž™αž“αŸƒαž’αŸ’αž˜αŸαž‰αž”αŸ’αžšαžˆαž˜
αž”αŸ‰αŸ‡-αž€αž€αž·αžαž…αŸ†αž€αŸ†αž–αž€ Cusp αž–αžΈαžšαž“αŸƒαž’αŸ’αž˜αŸαž‰αž”αŸ’αžšαžˆαž˜
αž”αŸ‰αŸ‡-αž€αž€αž·αžαž…αŸ†αž‡αž˜αŸ’αžšαžΆαž› Cuneus αž˜αž½αž™αž“αŸƒαž’αŸ’αž˜αŸαž‰αž”αŸ’αžšαžˆαž˜
αž”αŸ‰αŸ‡-αž€αž€αž·αžαž…αŸ†αž‡αž˜αŸ’αžšαžΆαž› Cuneus αž–αžΈαžšαž“αŸƒαž’αŸ’αž˜αŸαž‰αž”αŸ’αžšαžˆαž˜
Αž€αžΆαžšαžšαŸ€αž”αž…αŸ†αž‚αŸ’αžšαž”αŸ‹αž”αŸ’αžšαž’αž”αŸ‹ cavities αž•αŸ’αž‘αŸƒαž”αžΆαžαžšαžΆαž”αžŸαŸ’αž˜αžΎαž“αž·αž„αžŸαŸ’αžαž·αžαž“αŸ…αžŸαŸ’αžšαž‘αžΆαž”αŸ‹Dentin αž“αŸ…αž–αŸαž›αž‘αŸ†αž–αžΆαžšαž‘αž˜αŸ’αž„αž“αŸ‹-αž€αŸ†αž›αžΆαŸ†αž„ αž”αŸ’αžšαž αŸ‚αž›10 Kg αž”αŸ‰αž»αž“αŸ’αžαŸ‚αžŸαŸ’αžšαž‘αžΆαž”αŸ‹αž—αŸ’αž›αž»αž€αž’αŸ’αž˜αŸαž‰αžŠαŸ‚αž›αžšαž€αŸ’αžŸαžΆαž‘αž»αž€αž“αŸ„αŸ‡αž’αžΆαž…αž’αž“αŸ‹αžšαž αžΌαžαžŠαž›αŸ‹αž”αŸ‰αž»αž“αŸ’αž˜αžΆαž“αž‚αžΈαž‘αžΌαž€αŸ’αžšαžΆαž˜?
αž’αžΆαž…αž’αž“αŸ‹αžšαž αžΌαžαžŠαž›αŸ‹ 20 Kg
αž’αžΆαž…αž’αž“αŸ‹αžšαž αžΌαžαžŠαž›αŸ‹ 30 Kg
αž’αžΆαž…αž’αž“αŸ‹αžšαž αžΌαžαžŠαž›αŸ‹ 40 Kg
αž’αžΆαž…αž’αž“αŸ‹αžšαž αžΌαžαžŠαž›αŸ‹ 60 Kg
ΑžαžΎαž αŸαžαž»αž•αž›αž’αŸ’αžœαžΈαžŠαŸ‚αž›αž“αžΆαŸ†αž’αŸ„αž™αž”αžšαžΆαž‡αŸαž™-αž†αžΆαž”αŸ‹αž”αŸ‚αž€αž”αžΆαž€αŸ‹αž‰αžΉαž€αž‰αžΆαž”αŸ‹αž€αŸ’αž“αž»αž„αž€αžΆαžšαžŸαžΆαž„αžŸαž„αŸ‹αž’αŸ’αž˜αŸαž‰?
Αž’αŸ’αž˜αŸαž‰αž˜αž·αž“αž”αž„αŸ’αž€αž›αž€αŸ’αžαžŽαŸˆαž‡αžΈαžœαžŸαžΆαžŸαŸ’αžαŸ’αžšαž‡αžΆαž˜αž½αž™αžαŸ’αž“αžΆαŸ†
αž˜αž·αž“αž€αžΆαžαŸ‹αž”αž‰αŸ’αž†αž·αžαž‚αŸ‚αž˜-αžšαžΉαž˜αž”αŸ’αžšαž’αž”αŸ‹Cavity
αž˜αž·αž“αžαŸ’αžšαž½αžαž–αž·αž“αž·αžαŸ’αž™-αžŽαžΆαžαŸ‹αž‡αž½αž”αž‡αžΆαžαŸ’αž˜αžΈ
αž˜αž·αž“αžŸαŸ’αž‚αžΆαž›αŸ‹αž”αŸ’αžšαžœαžαŸ’αžαž·αž’αŸ’αž“αž€αž‡αŸ†αž„αžΊ
Αž”αž…αŸ’αž…αŸαž€αž‘αŸαžŸαž€αŸ’αž“αž»αž„αž€αžΆαžšαžαž½αž„αžŠαžΆαž€αŸ‹αž›αŸ„αž αŸˆ(Pin) αž€αŸ’αž“αž»αž„αž”αŸ’αžšαž’αž”αŸ‹ CavityαžαŸ’αžšαžΌαžœαžŸαŸ’αžαž·αžαž“αŸ…αžαŸ†αž”αž“αŸ‹αžŽαžΆαžŠαŸ‚αž›αžαŸ’αžšαžΉαž˜αžαŸ’αžšαžΌαžœ?
αž“αŸ…αžαŸ†αž”αž“αŸ‹ αž€αžΆαž…αžΆαž’αŸ’αž˜αŸαž‰ (Enamel zone)
αž“αŸ…αžαŸ†αž”αž“αŸ‹ αž—αŸ’αž›αž»αž€αž’αŸ’αž˜αŸαž‰ (Dentin zone)
αž“αŸ…αžαŸ†αž”αž“αŸ‹αž€αž˜αŸ’αžšαž·αžαž€αžΆαž…αžΆαž“αž·αž„ αž—αŸ’αž›αž»αž€αž’αŸ’αž˜αŸαž‰ (D.E.J)
αž“αŸ…αžαŸ†αž”αž“αŸ‹ 0.5-1.0mm αž€αŸ’αž“αž»αž„αž—αŸ’αž›αž»αž€αž’αŸ’αž˜αŸαž‰αž–αžΈE.D.J
Αž€αžΆαžšαžŸαžΆαž„αžŸαž„αŸ‹αž”αŸ’αžšαž’αž”αŸ‹Cavity αžŸαž˜αŸ’αžšαžΆαž”αŸ‹αž’αŸ’αž˜αŸαž‰αž€αŸ’αžšαŸ„αž™ (Class I cavity simple)αžŠαŸ‚αž›αž˜αžΆαž“αžšαŸ„αž‚αžœαž·αž“αž·αž…αŸ’αž†αŸαž™αž‡αžΆ Dentinite profound αžαžΎαžœαž·αž’αžΈαžŸαžΆαžŸαŸ’αžαŸ’αžšαž€αŸ’αž“αž»αž„αž€αžΆαžšαžŠαžΆαž€αŸ‹αžαŸ’αž“αžΆαŸ†αž”αž·αžαžŸαž˜αŸ’αžšαŸαž…αž˜αž½αž™αžŽαžΆαžŠαŸ‚αž›αž’αŸ’αž“αž€αž‚αž½αžšαž‡αŸ’αžšαžΎαžŸαžšαžΎαžŸ?
αžŠαžΆαž€αŸ‹αžαŸ’αž“αžΆαŸ† Ca(OH)2 + αž”αž·αžαžαŸ’αž“αžΆαŸ†αžŸαž˜αŸ’αžšαŸαž…
αžŠαžΆαž€αŸ‹αžαŸ’αž“αžΆαŸ† Ca(OH)2 +Eugenat+ αž”αž·αžαžαŸ’αž“αžΆαŸ†αžŸαž˜αŸ’αžšαŸαž…
αžŠαžΆαž€αŸ‹αžαŸ’αž“αžΆαŸ† Ca(OH)2 +Eugenat+Cement phosphate+αž”αž·αžαžαŸ’αž“αžΆαŸ†αžŸαž˜αŸ’αžšαŸαž…
αžŠαžΆαž€αŸ‹αžαŸ’αž“αžΆαŸ† Ca(OH)2 + αž”αž·αžαžαŸ’αž“αžΆαŸ†αžŸαž˜αŸ’αžšαŸαž…+αž†αžΆαž”αžŸαŸ’αžšαŸ„αž”
Αž•αŸ’αž‘αŸƒαž”αžΆαžαž“αŸƒαž”αŸ’αžšαž’αž”αŸ‹ CavityαžŠαŸ‚αž›αž˜αžΆαž“αžŸαžŽαŸ’αž‹αžΆαž“αž”αŸ‰αŸ„αž„αž€αžŽαŸ’αžαžΆαž›( Convexus on central) αžαžΎαž‘αž·αžŸαžŠαŸ…αž“αŸƒαž€αŸ†αž›αžΆαŸ†αž„-αž‘αž˜αŸ’αž„αž“αŸ‹αžšαžαŸ‹αžαŸ’αž›αžΆαŸ†αž„αž‘αŸ…αžαžΆαž„αžŽαžΆ?
ΑžšαžαŸ‹αžαŸ’αžšαž„αŸ‹αž…αž»αŸ‡αž€αŸ’αžšαŸ„αž˜αž…αŸ†αž€αžŽαŸ’αžαžΆαž›
ΑžšαžαŸ‹αžαŸ’αžšαž„αŸ‹αž…αž»αŸ‡αž€αŸ’αžšαŸ„αž˜αž…αŸ†αž€αžŽαŸ’αžαžΆαž›αž“αž·αž„αžαžΆαž„αŸ—αžŸαŸ’αž˜αžΎαž‚αŸ’αž“αžΆ
ΑžšαžαŸ‹αžαŸ’αžšαž„αŸ‹αž…αž»αŸ‡αž€αŸ’αžšαŸ„αž˜αž…αŸ†αž€αžŽαŸ’αžαžΆαž›αž“αž·αž„αžαŸ’αž›αžΆαŸ†αž„αž‡αžΆαž„αžαžΆαž„αŸ—
ΑžšαžαŸ‹αžαŸ’αžšαž„αŸ‹αž…αž»αŸ‡αž€αŸ’αžšαŸ„αž˜αž…αŸ†αž€αžŽαŸ’αžαžΆαž›αž“αž·αž„αžαž·αž…αž‡αžΆαž„αžαžΆαž„αŸ—
Αž€αžΆαžšαž”αŸ’αžšαžΎαž”αŸ’αžšαžΆαžŸαŸ‹αžαŸ’αž“αžΆαŸ† Composite αžŠαžΎαž˜αŸ’αž”αžΈαžŸαžΆαž„αžŸαž„αŸ‹αž’αŸ’αž˜αŸαž‰αž€αŸ’αžšαŸ„αž™αž–αŸαž›αžαž½αž„αžŠαžΆαž€αŸ‹αžαŸ’αž…αŸ…(Pin) αžαžΎαž˜αžΌαž›αž αŸαžαž»αž’αŸ’αžœαžΈ αž€αžΎαžαž‘αžΎαž„αžŠαŸ‚αž›αž”αž„αŸ’αž αžΆαž‰αž’αŸ„αž™αžƒαžΎαž‰αžαžΆαžœαžΆαž†αžΆαž”αŸ‹αž”αŸ’αžαžΌαžšαž–αžŽαŸŒ?
αžαŸ’αž“αžΆαŸ† Composite αž˜αž·αž“αž˜αžΆαž“αž’αž„αŸ’αž‚αžŸαžŸαŸƒαŸ—αž‚αŸ’αžšαž”αŸ‹αž‚αŸ’αžšαžΆαž“αŸ‹
αžαŸ’αž“αžΆαŸ† Composite αž˜αž·αž“αžŸαŸ’αž’αž·αžαž‡αžΆαž”αŸ‹αžŸαŸ’αžšαž‘αžΆαž”αŸ‹αž’αŸ’αž˜αŸαž‰
αžαŸ’αž“αžΆαŸ† Compositeαž˜αž·αž“αžŸαŸ’αž’αž·αžαž‡αžΆαž”αŸ‹αžαŸ’αž…αŸ… (Pin)
αžαŸ’αž“αžΆαŸ† Composite αž˜αž·αž“αž˜αžΆαž“αž•αŸ’αž‘αŸƒαžαžΆαž„αž€αŸ’αžšαŸ…αžšαž›αŸ„αž„
ΑžαžΎαž’αŸ’αž“αž€αžαŸ’αžšαžΌαžœαž’αŸ’αžœαžΎαžŠαžΌαž…αž˜αŸ’αžαŸαž…αžŠαŸ‚αž›αž€αŸ’αžšαŸ„αž™αž€αžΆαžšαžŸαžΆαž„αžŸαž„αŸ‹αž’αŸ’αž˜αŸαž‰αž˜αž»αžαžŠαŸ„αž™αžαŸ’αž“αžΆαŸ† Compositeαž–αž»αŸ†αž’αžΆαž…αž˜αžΎαž›αžƒαžΎαž‰αžŸαŸ’αž“αžΆαž˜ αžšαžœαžΆαž„αžαŸ’αž“αžΆαŸ†αž“αž·αž„αžŸαŸ’αžšαž‘αžΆαž”αŸ‹αž’αŸ’αž˜αŸαž‰?
αž‚αŸ‚αž˜αž¬αžšαžΉαž˜ Cavo-surface αž˜αž·αž“αž€αžΆαžαŸ‹αž”αž‰αŸ’αž†αž·αž (Bevel)
αž‚αŸ‚αž˜αž¬αžšαžΉαž˜ Cavo-surface αž€αžΆαžαŸ‹αž”αž‰αŸ’αž†αž·αž (Bevel)
αž”αž·αžαžαŸ’αž“αžΆαŸ†αž”αž“αŸ’αžαŸ‚αž˜αž–αžΈαž›αžΎαžαŸ†αž”αž“αŸ‹αž“αŸ„αŸ‡
αžšαž€αŸ’αžŸαžΆαž‘αž»αž€αžŸαŸ’αžšαž‘αžΆαž”αŸ‹αž’αŸ’αž˜αŸαž‰αž›αŸ’αž’ αžšαžΉαž„αž˜αžΆαŸ†-αž‚αŸ’αž˜αžΆαž“αž•αž›αž”αŸ‰αŸ‡αž–αžΆαž›αŸ‹
Αž€αŸ’αž“αž»αž„αž…αŸ†αžŽαŸ„αž˜αžŸαž˜αžΆαžŸαž’αžΆαžαž»αž›αŸ„αž αŸˆ αžŠαŸ‚αž›αž•αŸ’αžŸαŸ†αž›αžΆαž™αžŠαžΎαž˜αŸ’αž”αžΈαž”αž„αŸ’αž€αžΎαžαž‡αžΆαžαŸ’αž“αžΆαŸ† Amalgam αž˜αž½αž™αžŽαžΆαžŠαŸ‚αž›αž˜αžΆαž“αžŸαžΆαžšαŸˆαžŸαŸ†αžαžΆαž“αŸ‹αž‡αžΆαž„αž‚αŸ?
αžŸαž„αŸ’αž€αžŸαžΈ(Zn)
αž”αŸ’αžšαžΆαž€αŸ‹(Ag)
αž‘αž„αŸ‹αžŠαŸ‚αž„(cu)
αžŸαŸ†αžŽ(Sn)
ΑžšαžΆαž„-αž‘αŸ’αžšαž„αŸ‹αž‘αŸ’αžšαžΆαž™αž‚αŸ„αž›αžšαž”αžŸαŸ‹αž”αŸ’αžšαž’αž”αŸ‹ Cavity Class I αž‘αŸ†αž αŸ†αž’αŸ†(basic cavity shape) αžŠαŸ‚αž›αž‡αž‰αŸ’αž‡αžΆαŸ†αž„αžšαžΈαž€ αž‘αŸ…αž•αŸ’αž‘αŸƒαžαžΆαž„αž›αžΎ-αžαŸ‚αž•αŸ’αž‘αŸƒαž”αžΆαžαžαžΆαž„αž€αŸ’αžšαŸ„αž˜αž˜αžΆαž“αž’αŸ’αžœαžΎαž…αŸ†αžŽαž»αž…αž‘αžΆαž€αŸ‹αž‡αžΆαž”αŸ‹ αžαžΎαž’αžΆαž…αž’αž“αŸ‹αž“αž·αž„αž€αŸ†αž›αžΆαŸ†αž„-αž‘αž˜αŸ’αž„αž“αŸ‹αž¬αžŸαž˜αŸ’αž–αžΆαž’αž”αžΆαž“αž”αŸ‰αž»αž“αŸ’αž˜αžΆαž“αž‚αžΈαž‘αžΌαž€αŸ’αžšαžΆαž˜?
αž’αž“αŸ‹αž”αžΆαž“αžαŸ’αžšαžΉαž˜ αŸ₯Kg αž”αŸ‰αž»αžŽαŸ’αžŽαŸ„αŸ‡
αž’αž“αŸ‹αž”αžΆαž“αžαŸ’αžšαžΉαž˜ ៦Kg αž”αŸ‰αž»αžŽαŸ’αžŽαŸ„αŸ‡
αž’αž“αŸ‹αž”αžΆαž“αžαŸ’αžšαžΉαž˜ ្០Kg αž”αŸ‰αž»αžŽαŸ’αžŽαŸ„αŸ‡
αž’αž“αŸ‹αž”αžΆαž“αžαŸ’αžšαžΉαž˜ ្αŸ₯Kg αž”αŸ‰αž»αžŽαŸ’αžŽαŸ„αŸ‡
Αž€αžΆαžšαžšαŸ€αž”αž…αŸ†αž’αŸ’αžœαžΎαž˜αž»αŸ†αŸ’ αž€αŸ’αž“αž»αž„αž”αŸ’αžšαž’αž”αŸ‹ Cavity(internal dihedron angles) αžαŸ’αžšαž„αŸ‹αžαŸ†αž”αž“αŸ‹αžŽαžΆαžŠαŸ‚αž›αž’αŸ’αž“αž€αž™αž›αŸ‹αžƒαžΎαž‰ αž”αŸ’αžšαžŸαžΎαžšαž‡αžΆαž„αž˜αž½αž™αžŽαžΆ?
αž”αŸ’αžšαžŸαžΎαžšαž“αŸ…αžαŸ†αž”αž“αŸ‹ pulp wall
αž”αŸ’αžšαžŸαžΎαžšαž“αŸ…αžαŸ†αž”αž“αŸ‹ gingival wall
αž˜αžΆαž“αžαž˜αŸ’αž›αŸƒαžŸαŸ’αž˜αžΎαž‚αŸ’αž“αžΆαž‚αŸ’αžšαž”αŸ‹αžαŸ†αž”αž“αŸ‹
αž”αŸ’αžšαžŸαžΎαžšαž“αŸ…αžαŸ†αž”αž“αŸ‹ occlusal wall
Αž‚αŸ’αžšαž”αŸ‹αž”αŸ’αžšαž’αž”αŸ‹ cavities αžαŸ’αžšαž„αŸ‹αžαŸ†αž”αž“αŸ‹ cavo-surface αž€αžΆαžšαž€αžΆαžαŸ‹αž”αž‰αŸ’αž†αžΉαžαž¬αž˜αž·αž“αž€αžΆαžαŸ‹αž”αž‰αŸ’αž†αž·αž αžαžΎαžœαž·αž’αžΈαžŸαžΆαžŸαŸ’αžšαŸ’αžαž˜αž½αž™ αžŽαžΆαžŠαŸ‚αž›αž’αŸ’αž“αž€αž™αž›αŸ‹αžαžΆαž›αŸ’αž’αž”αŸ’αžšαžŸαžΎαžš?
αžαŸ’αžšαžΌαžœαž€αžΆαžαŸ‹αž”αž‰αŸ’αž†αž·αž
Αž˜αž·αž“αž€αžΆαžαŸ‹αž”αž‰αŸ’αž†αž·αž
Αž€αžΆαžαŸ‹αž”αž‰αŸ’αž†αž·αžαž…αŸ’αžšαžΎαž“αž€αžΆαž“αŸ‹αžαŸ‚αž”αŸ’αžšαžŸαžΎαžš
Αž’αžΆαžŸαŸ’αžšαŸαž™αž‘αŸ„αžαžΆαž˜αžαŸ’αž“αžΆαŸ†αž”αž·αžαžŸαŸ†αžšαŸαž…
Αž€αžΆαžšαžŸαžΆαž„αžŸαž„αŸ‹αž”αŸ’αžšαž’αž”αŸ‹ cavity class II by Dr.Black αžŠαŸ„αž™αžαŸ’αž“αžΆαŸ† Amalgam αž”αŸ‰αŸ„αž„αž›αžΎαžŸαž‚αŸ‚αž˜-αžšαžΉαž˜αž€αžΆαŸ†αž‡αžΆαž“αŸ‹αž‘αžΈαŸ‘ (over-hung gingival margin) αžαžΎαžœαžΆαž˜αžΆαž“αž αŸαžαž»αž€αžΆαžšαžŽαŸαž€αžΎαžαž‘αžΎαž„αž“αŸ…αž–αŸαž›αž€αŸ’αžšαŸ„αž™?
αž”αž„αŸ’αž€αž€αžΆαžšαž”αŸ‚αž€αž”αžΆαž€αŸ‹-αžšαž”αžΌαžαž…αŸαž‰αž”αž“αŸ’αžαž·αž…αž˜αŸ’αžαž„αŸ—
Αž”αž„αŸ’αž€αž‡αžΆαž€αž“αŸ’αž›αŸ‚αž„αž‡αŸ’αžšαžΆαž”αž‘αžΉαž€
αž”αž„αŸ’αž€αž‡αžΆαž…αŸ’αžšαŸαŸ‡-αžŸαŸ’αž“αžΉαž˜
Αž”αž„αŸ’αž€αž’αŸ„αž™αž’αŸ’αž˜αŸαž‰αžŸαŸ’αž›αžΆαž”αŸ‹
Αž€αŸ’αž“αž»αž„αž€αžΆαžšαžšαŸ€αž”αž…αŸ†αž’αŸ’αžœαžΎαž”αŸ’αžšαž’αž”αŸ‹ cavities class II ឬ class III αžŠαŸ‚αž›αž”αŸ’αžšαž’αž”αŸ‹ cavities αž›αžΆαžαžŸαž“αŸ’αž’αžΉαž„αž‘αŸ…αžαžΆαž„ proximal face αžαžΎαž‘αž·αžŸαžŠαŸ…αž‡αž‰αŸ’αž‡αžΆαŸ†αž„ (walls) αžŠαžΌαž…αž˜αŸ’αžαŸαž…αžŠαŸ‚αž›αž†αžΆαž”αŸ‹αž”αŸ‚αž€αž”αžΆαž€αŸ‹αž€αŸ’αžšαŸ„αž™αž€αžΆαžšαžŸαžΆαž„αžŸαž„αŸ‹?
Linguo and Vestibular Divergences proximal
Linguo and Vestibular Convergences proximal
Linguo and Vestibular Parallele proximal
Linguo and Vestibular Divergences to axial wall
ΑžαŸ’αž“αžΆαŸ†αžŸαž˜αŸ’αžšαžΆαž”αŸ‹αž’αŸ’αžœαžΎαž€αžΆαžšαžŸαžΆαž„αžŸαž„αŸ‹αž’αŸ’αž˜αŸαž‰ αžŠαŸ‚αž›αž˜αžΆαž“αž›αž€αŸ’αžαžŽαŸˆαžŸαž˜αŸ’αž”αžαŸ’αžαž·αžšαžΌαž”(Thernal properties)αž’αžΆαž…αž¬αž˜αž·αž“ αž’αžΆαž…αž…αŸ†αž›αž„αž…αžšαž“αŸ’αžαž’αžΆαžŸαŸ’αžšαŸαž™αž‘αŸ…αž›αžΎαž’αŸ’αžœαžΈ?
αž’αžΆαžŸαŸ’αžšαŸαž™αž‘αŸ…αž›αžΎαž—αžΆαž–αž’αž“αŸ‹-αžšαžΉαž„αž˜αžΆαŸ†
αž’αžΆαžŸαŸ’αžšαŸαž™αž‘αŸ…αž›αžΎ αž€αŸ†αž αžΆαž”αŸ‹αž¬αž—αžΆαž–αž‡αžΆαž”αŸ‹αžŸαŸ’αž’αž·αž
αž’αžΆαžŸαŸ’αžšαŸαž™αž‘αŸ…αž›αžΎ αž€αž˜αŸ’αžšαž·αžαž‚αž»αžŽαž—αžΆαž–αž¬αž”αžšαž·αž˜αžΆαžŽαž“αŸƒαž’αž„αŸ’αž‚αž’αžΆαžαž»
αž’αžΆαžŸαŸ’αžšαŸαž™αž‘αŸ„αž›αžΎαž€αž˜αŸ’αžšαžΆαžŸαŸ‹ αžŸαŸ’αžαžΎαž„αž¬αž€αŸ’αžšαžΆαžŸαŸ‹
Αž€αŸ’αž“αž»αž„αžœαž·αž’αžΈαžŸαžΆαžŸαŸ’αžšαŸ’αžαž€αžΆαžšαž–αžΆαžšαž”αžŽαŸ’αžαžΌαž›αžŸαžšαžŸαŸƒαž”αŸ’αžšαžŸαžΆαž‘αž’αŸ’αž˜αŸαž‰(base on pulp protection) αžαžΎαžαŸ†αž”αž“αŸ‹αž¬αž€αž˜αŸ’αžšαžΆαžŸαŸ‹αžαŸ’αž“αžΆαŸ†αž”αŸ‰αž»αž“αŸ’αž˜αžΆαž“αžŠαŸ‚αž›αž‡αŸ†αž“αž½αž™αžŠαž›αŸ‹αžŸαŸ’αžšαž‘αžΆαž”αŸ‹αž’αŸ’αž˜αŸαž‰αžŠαŸ‚αž›αžšαž€αŸ’αžŸαžΆαž‘αž»αž€?
αž›αž»αŸ‡αžαŸ’αžšαžΆαž€αž˜αŸ’αžšαžΆαžŸαŸ‹αžαŸ’αž“αžΆαŸ† 0,5mm
αž›αž»αŸ‡αžαŸ’αžšαžΆαž€αž˜αŸ’αžšαžΆαžŸαŸ‹αžαŸ’αž“αžΆαŸ† 1 mm
αž›αž»αŸ‡αžαŸ’αžšαžΆαž€αž˜αŸ’αžšαžΆαžŸαŸ‹αžαŸ’αž“αžΆαŸ† 2 mm
αž€αž˜αŸ’αžšαžΆαžŸαŸ‹αžαŸ’αž“αžΆαŸ†αžŠαŸ‚αž›αž‡αžΆαž”αŸ‹αžŸαŸ’αž’αž·αž αžŸαŸ’αžšαž‘αžΆαž”αŸ‹αž’αŸ’αž˜αŸαž‰
Αž€αžΆαžšαžšαŸ€αž”αž…αŸ†αž”αŸ’αžšαž’αž”αŸ‹ cavity class III αž’αŸ’αž˜αŸαž‰αž…αž„αŸ’αž€αžΌαž˜αž•αŸ’αž‘αŸƒαž•αŸ’αž“αŸ‚αž€αžαžΆαž„αž€αŸ’αžšαŸ„αž™ (distal face canine)αžŸαžΆαž„αžŸαž„αŸ‹ αžŠαŸ„αž™αžαŸ’αž“αžΆαŸ† Amalgam αž—αžΆαž‚αž…αŸ’αžšαžΎαž“αž–αŸαž›αžšαž„αž•αž›αž”αŸ‰αŸ‡αž–αžΆαž›αŸ‹ αžŠαž›αŸ‹αž•αŸ’αž‘αŸƒαžŽαžΆαžαŸ’αž›αŸ‡αž“αŸƒαž’αŸ’αž˜αŸαž‰?
Face Distal
Face Disto-Lingual
Face Disto-Vestibular
Face Linguo-Disto-Vestibular
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