Chap 2 Diagnosis and Treatment Plan

 
Diagnosis ½Ã ÇØ¾ßÇÒ »çÇ×
abnormality recognition
seriousness evaluation
etiologic factor determination
Á¤È®ÇÑ Áø´ÜÀ» À§Çؼ­´Â ¸¹Àº °æÇè°ú Áö½ÄÀÌ ÇÊ¿äÇÏ´Ù.
 
Ä¡·á °èȹ
Áø´ÜÀ¸·ÎºÎÅÍ ³ª¿Â °á°ú¿Í ¸ðµç ¿©°ÇÀ» °í·ÁÇØ¼­ °¡Àå ÁÁÀº ¹æ¹ý°ú ¼ø¼­¸¦ °áÁ¤, ¼±ÅÃÇÏ´Â °Í. ÃѰýÀûÀÌ°í ¿¹¹æÀûÀÎ Ä¡·á °èȹ¿¡ ÀÇÇØ ÁÁÀº °á°ú ¹× ¿¹Èĸ¦ ±â´ëÇÒ ¼ö ÀÖ´Ù.
°¡Àå ÁÁÀº Tx. planningÀº step by step procedureÀÌ´Ù.
<±¸Ã¼Àû step>
X-ray
Áø´Ü¸ðÇüÁ¦ÀÛ
oral examination
ȯÀÚ¿Í ´ëÈ­·Î MH. DH¿¡ ´ëÇØ consultation
explorer·Î ¸ðµç Ä¡¾Æ °üÂû
periodontal consideration
±³Á¤Ä¡·á Çʿ俩ºÎ °áÁ¤
appointment arrangement
 
Diagnostic procedure for bridge
1. history taking: ´ëÈ­¸¦ ÅëÇÏ¿© Pt.ÀÇ °Ç°­»óÅ check
1) chief complaint
ȯÀÚ°¡ ³»¿øÇÑ ÁÖ¿ä ¿øÀÎ; comfort, function, social, esthetic
Ä¡°úÀÇ»çÀÇ ideal treatment plan°ú ȯÀÚÀÇ Èñ¸ÁÀ» ¼­·Î Á¶Àý
2) medical history
medication: ÀÔ¿ø °æÇè, ÇöÀç º¹¿ëÇÏ´Â ¾à
allergy: ƯÈ÷ ±¹¼Ò ¸¶ÃëÁ¦¿¡ ´ëÇØ¼­
systemic disease: hypertension, cardiovascular disease, diabetes,
epilepsy µî.
legal problem¿¡ ´ëÇÑ ´ëºñ¸¦ À§Çؼ­µµ ÇʼöÀûÀÓ
-classification-
a. affecting Tx. method
b. affecting the Tx. plan
c. systemic condition with oral manifestation
d. possible risk factor
3) dental history
TMJ problem - TMJ pain dysfunction
peridontal history
restorative & prosthodontic history
oral surgery history
endodontic history
degree of cooperation(ÇùÁ¶µµ, oral hygiene)
2. clinical examination
1) radiographic exam.
(1) standard filmÀÌ Ä¡°ú ¿µ¿ª¿¡¼­ ¸¹ÀÌ »ç¿ë.
X-ray beamÀ» Ä¡¾Æ¿¡ ÂÉÀÓ.(lingualÃø¿¡ film)
black ºÎÀ§: radiolucent - soft
white ºÎÀ§: radiopaque - hard
14ˌ˂ full mouth intraoral X-ray
(2) panoramic X-ray: Àü¾ÇÀÇ X-ray »óÀ» ÇѲ¨¹ø¿¡ ¾òÀ½.
Man. Max. TMJÀÇ »óŸ¦ °üÂû°¡´É
# Intraoral X-ray film¿¡¼­ °üÂûÇØ¾ß ÇÒ Á¡µé
1> Áö´ëÄ¡¾ÆÀÇ degree of bone loss(°ñÈí¼öµµ)
alveolar bone ÀÇ level , C/R ratio, trabeculation pattern
2> periodontal pocket(gingival sulcus°¡ normal depth ÀÌ»ó)
& furcation involvement
3> periodontal membraneÀÇ quality - lamina duraÀÇ continuity
4> root morphology, number & retained root
5> apical lesion & supporting bone quality
Ä¡¾Æ³»ºÎÀÇ º´º¯ÀÌ apical ºÎÀ§·Î ÆÄ±ÞµÉ ¶§ blackÀ¸·Î º¸ÀÓ.
6> dental cariesÀÇ depth
7> pulp morphology - canal filling (Àß ¾ÈµÇ¾î ÀÖÀ» ¶§´Â Endo. Tx. ÈÄ º¸Ã¶)
8> long axis relationship
2) oral exam.
(1) ±â±¸ mouth mirror: °Å¿ïÀÇ ¿ªÇÒ »Ó ¾Æ´Ï¶ó tongue cheekÀÇ retraction,
Á¶¸í¿ªÇÒ
water & air syringe
explorer
cellophane strip
floss silk: contactÀÇ Á¤µµ, Â±â Á¦°Å
(2) °üÂûÇÒ Á¡
1> soft tissueÀÇ condition - healthy gingiva, attached gingiva width
2> periodontal pocketÀÇ À¯¹«
3> Ä¡¾Æ surfaceÀÇ »óÅ - discoloration, decalcification (caries °¨º°¿¡´Â À°¾È °üÂû°ú, explorer°¡ °¡Àå ÁÁÀº ¹æ¹ý ; ±î¸Ä°í Âñ·¯º¸¸é µé¾î°¨) - soft dentin Á¦°Å ¾Ê°í crown setting ½ÃŰ¸é ³»ºÎ¿¡¼­ caries ÁøÇà
4> tooth mobility
5> tooth vitality; electric pulp test - Àü·ù¸¦ Åë°ú½ÃÄÑ pulp µî, Ä¡¾ÆÀÇ vitality °üÂû
6> oral hygiene care and caries index
7> occlusion °ü°è - premature contactÀÇ À¯¹«(facet Çü¼º), anterior guidance, slide in centric
8> jaw relation - arch size, jaw movement
9> ÀÌÀü º¸Ã¶¹°ÀÌ ÀÖÀ» ¶§, ÁÖÀ§Á¶Á÷ÀÇ ¿¹Èĸ¦ °üÂû
10> ÀÌÀü ¼öº¹¹°¿¡ ´ëÇÑ Á¶»ç(±â´É, ½É¹Ì¼º,±³ÇÕ).
3) head and neck examination
TMJ dysfunction
masticatory muscle
facial profile
lip
3. diagnostic cast(= study cast)
»ó. ÇϾÇÀÇ full archÀÇ cast¸¦ Á¦ÀÛÇÏ¿© ±³Çձ⿡ mounting½ÃŲ °æ¿ì¸¦ ¸»Çϸç Á¤È®ÇÑ Áø´ÜÀ» À§ÇØ ÇʼöÀûÀÌ´Ù. ±¸°­³»º¸´Ù accessibility, visibility°¡ ÁÁ±â ¶§¹®.
# Value of Dx. cast
1) bridge¿¡ ÀÛ¿ëµÇ´Â force¸¦ evaluation - edentulous space length, curvature of arch, inclination of abutment tooth
2) ´ëÇÕÄ¡ occlusal planeÀÇ °üÂûÀÌ °¡´ÉÇϹǷΠ´ëÇÕÄ¡ÀÇ ÀçÇü¼º ¿©ºÎ¸¦ °áÁ¤ÇÒ ¼ö ÀÖ´Ù.(rebuilding or grinding)
3) ¹Ù¶÷Á÷ÇÑ path of insertion & removalÀ» ¾òÀ» ¼ö ÀÖ´Ù.
Áö´ëÄ¡¿¡ bridgeÀ» ³¢¿ï ¶§, µÎ Áö´ëÄ¡°¡ parallelÇϰí POI°¡ ÇÑ ¹æÇâÀÏ ¶§ °¡Àå ÁÁ´Ù.
Áö´ëÄ¡¿¡, ±¸°­Á¶Á÷¿¡ º¸Ã¶¹°À» ÀåÂøÇÏ´Â ¹æ¹ý.
POI
4) Áö´ëÄ¡ÀÇ »èÁ¦·®À» ÃøÁ¤ÇÒ ¼ö ÀÖ´Ù.(pulpÀÇ exposure µîÀ» °í·Á)
5) ±³ÇÕ·ÂÀÇ ¹æÇâ
6) ¸ðµç Tx. planÀ» °èȹÇÒ ¼ö ÀÖ´Ù.
7) missing spanÀÇ ponticÀÇ ÀûÀýÇÑ ¼±Åÿ¡ µµ¿òÀÌ µÈ´Ù.
8) diagnostic wax up
4. photograph
estheticÇÑ ¸éÀÌ °­Á¶µÉ ¶§
ȯÀÚÀÇ ±â´ë¿Í ÀÇ»çÀÇ ½Ã¼ú ¹æÇâÀ» ¸ÂÃß±â À§ÇÏ¿©
legal problem¿¡ ´ëºñÇÑ º¸Á¶¼ö´Ü

Objectives of treatment
1. ÁøÇàÁßÀÎ Áúº´ÀÇ Ä¡·á
2. Áúº´ÀÇ ¿¹¹æ
3. ±â´ÉÀÇ È¸º¹
4. ½É¹Ì¼º ÁõÁø
 
Ä¡·áÀÇ ¼ø¼­
1. Áõ»óÀÇ Ä¡·á - µ¿Åë, ºÒÆíÇÔ µî
2. º´ÀÎ Á¦°Å - ¾ÇÈ­ ¹æÁö ¹× ¿¹¹æ(¿ì½ÄÁõ, Ä¡ÁÖÁúȯ)
3. Ä¡·á ½ÃÀÛ
1) ±¸°­ ¿Ü°ú Ä¡·á
2) Ä¡ÁÖ Ä¡·á
3) º¸Á¸°ú Ä¡·á
4) ±³Á¤Ä¡·á
5) °íÁ¤¼º º¸Ã¶Ä¡·á
1> ±³ÇÕ Á¶Á¤
2> ÀüÄ¡ºÎ º¸Ã¶
3> ±¸Ä¡ºÎ º¸Ã¶ - ÆíÃøÀ¸·Î »óÇϸ¦ ¸ÕÀú Ä¡·á
6) °¡Ã¶¼º º¸Ã¶Ä¡·á
7) recall check
 
º¸Ã¶ Ä¡·á ¼ú½ÄÀÇ ¼±ÅÃ
1. Àç·á
1) plastic
2) cast metal
3) metal-ceramic
4) resin veneered cast metal
5) complete ceramic
6) resin retained restoration
2. º¸Ã¶¹°
1) crown & bridge
2) RPD
3) complete dentures
 
Presenting of Tx. planning
1. general outline ¼³¸í - Áø´Ü °á°ú, ³»¿ø Ƚ¼ö, ºñ¿ë µî
2. choice of Tx.
1st choice, 2nd, 3rd choiceµî ÃÖ´ë ¹× ÃÖ¼ÒÀÇ Ä¡·á ¹üÀ§ Á¦½Ã
3. level of achievement
Ä¡·á ¹üÀ§¿Í ÇѰè, ½É¹Ì¼º µî
4. expected life of restoration
 
Indication for bridge
1. proper distribution of abutment tooth(À§Ä¡)
Áö´ëÄ¡·Î ¼±ÅÃµÈ Ä¡¾Æ°¡ edentulous spaceÀÇ ¾ç³¡ Ãø¿¡ Á¸ÀçÇØ¾ß ÇÑ´Ù.
missing space°¡ ±æ´õ¶óµµ Áß°£ Áö´ëÄ¡°¡ ÀÖ´Â °æ¿ì¿¡´Â bridge¸¦ ÇÒ ¼ö ÀÖ´Ù.
pier abutment = intermediate abutment
" ±³°¢ "
2. healthy abutment
supporting bony structureÀÇ atrophy°¡ ¾ø¾î¾ß ÇÑ´Ù.
rootÀÇ ÀÌ»óÀûÀÎ ÇüÅ´ multi root, parallel sided square long shape root.
ÇöÀç ÁøÇàÁßÀÎ caries, periodontitis¸¦ ¾ø¾Ø ÈÄ, Áö´ëÄ¡·Î »ç¿ëÇÑ´Ù.
vitalÇÑ °æ¿ì: ÀûÀýÇÑ Àڱؿ¡ ´ëÇØ ÀûÀýÇÑ ¹ÝÀÀÀ» ÇÏ´Â Ä¡¾Æ
non -vitalÇÑ °æ¿ì: canal - fillingÀÌ ÀߵǾî ÀÖ¾î¾ß Çϰí apical lesionÀÌ ¾ø¾î¾ß ÇÑ´Ù.
- apical rarefaction(pulp. º´º¯¿¡ ÀÇÇØ pus µîÀÌ ¹ÛÀ¸·Î ³ª¿À´Ù ±× ºÎÀ§ÀÇ boneÀ» ³ì¿©¼­ radiolucentÇÏ°Ô ³ªÅ¸³²)
3. adequate crown/root ratio(=periodontal support)
1) Ante's law
1926 ³â I.H. Ante °¡ ¹ßÇ¥ÇÑ theory
"bridgeÁ¦À۽à Áö´ëÄ¡ÀÇ total periodontal membraneÀÇ ³ÐÀÌ´Â missing
toothÀÇ total periodontal membraneÀÇ ³ÐÀ̺¸´Ù Å©°Å³ª, Àû¾îµµ °°¾Æ¾ß ÇÑ´Ù."
2) C/R ratio
Áö´ëÄ¡¿¡¼­ C/R ratio°¡ ±æÀÌ ºñ·Î 1 : 1.5°¡ °¡Àå ¹Ù¶÷Á÷.
±×·¯³ª, 1 : 1.5 °¡ ¸øµÇ¾îµµ 1) tooth mobility°¡ ¾ø°í, 2) Ä¡ÁÖÁ¶Á÷ÀÌ °Ç°­Çϰí 3) ´ëÇÕÄ¡·ÎºÎÅÍÀÇ ±³ÇÕ·ÂÀÌ Á¤»óÀÏ ¶§
ÃÖ¼Ò C/R ratio 1 : 1·Î¼­µµ, Áö´ëÄ¡·Î »ç¿ëÀÌ °¡´É.
o ÀÌ»óÀÇ Á¶°ÇÀÌ ¸Â´ÂÁö
1) X-ray exam.
2) oral exam. ÀÇ ±Ù°Å ÇÏ¿¡¼­ indicationÀ» Á¶»çÇÑ´Ù.
3) Dx. cast exam.
 
Factors influencing bridge construction
(contraindication)
1. long missing span
1) ¾ÕµÚ¿¡ Áö´ëÄ¡°¡ ÀÖ´õ¶óµµ missing spanÀÌ ³Ê¹« ±ä °æ¿ì
Ante's law¿¡ ÀûÇÕÇÏÁö ¸øÇÒ °æ¿ì°¡ ÀÖ´Ù.
2) À§¾Æ·¡·Î ÈÖû°Å¸®°Ô µÇ¾î Áö´ëÄ¡°¡ ¼Õ»óµÇ°í, cement°¡ Å»¶ôµÉ ¼ö ÀÖ´Ù.
3) ¾Æ¹«¸® Áö´ëÄ¡°¡ Æ°Æ°ÇØµµ ±¸Ä¡ºÎ¿¡ 4°³ÀÇ missing ½Ã, bridge´Â ºÎÀûÇÕ.
2. crown and root form
1) ±³¸ð¿¡ ÀÇÇØ Ä¡¾Æ°¡ Á¤»ó±æÀÌ º¸´Ù ª°í, ±¸Ä¡ºÎÀÇ occlusal formÀÌ ÀüÇô ³²¾ÆÀÖÁö ¾Ê´Â short bite¶§ ±× Ä¡¾Æ ±æÀÌ¿¡ ¸ÂÃß¾î bridge - retentionÀ» ¾òÀ» ¼ö ¾ø´Ù.
2) Á¤»óÀûÀÎ Ä¡¾ÆÇüÅÂ(ƯÈ÷ embrasure)¸¦ ¸¸µé ¼ö ¾øÀ¸¹Ç·Î periodontal disease À¯¹ß.
3) short round root´Â ¹Ù¶÷Á÷ÇÏÁö ¾Ê´Ù.
3. previous unfavorable reaction
1) metal alloy¿¡ ´ëÇÑ mucosaÀÇ allergy°¡ ÀÖ´Â °æ¿ì - ±âÁ¸ º¸Ã¶¹° ÁÖÀ§¿¡ ÁÁÁö ¾ÊÀº ¡Èİ¡ ³ªÅ¸³¯ ¶§
2) long term abutment prognosis°¡ ÁÁÁö ¸øÇÒ ¶§
4. alveolar bone resorption
1) missing spanÀÌ Âª´õ¶óµµ alv. bone ÅðÃàÀ¸·Î C/R ratio ³ª Ante's law¿¡ ÃæÁ·µÇÁö ¸øÇÑ´Ù.
2) ½É¹ÌÀûÀÎ ¹®Á¦°¡ ¹ß»ý: ponticÀÇ ÇüÅ»ó
- RPD·Î ÇÏ¿© gingival colored resinÀ¸·Î bone Èí¼öºÎÀ§ ó¸®ÈÄ Ä¡¾Æ½Ä¸³
5. periodontal health
Ä¡ÁÖ ÁúȯÀÌ ÀÖ°í Ä¡ÁÖ Ä¡·áÈÄ Àç Æò°¡ ½Ã¿¡µµ Áõ¼¼ÀÇ °³¼±ÀÌ ÀÖÁö ¾ÊÀ» ¶§
6. dental arch form
curved dental arch¿¡¼­ counterbalancing retentionÀÌ ¾ø´Â °æ¿ì
ex)
4 - anterior tooth missing½Ã
straight ¼±»ó¿¡¼­´Â ¾ç ÀüÄ¡¸¦ ÀÌ¿ëÇÏ¸é °¡´ÉÇϳª, curved arch »ó¿¡¼­´Â fulcrum lineÀ» Áß½ÉÀ¸·Î rotationÇÏ·Á´Â °æÇâÀÌ ¹ß»ý
Áö´ëÄ¡°¡ µÚ¿¡ Çϳª ´õ ÀÖ¾î, ±× °æÇâÀ» ¸·¾Æ ÁÙ ¼ö ÀÖ¾î¾ß ÇÑ´Ù. - splinting¿¡ ÀÇÇÑ counterbalancing retention
7. occlusion
adverse force - periodontal destruction, ceramicÀÇ ÆÄÀý
bruxism
8. oral hygiene care¸¦ ÀßÇÏÁö ¾Ê´Â Pt.
Àǽɽº·¯¿î Ä¡¾Æ¸¦ ¹ßÄ¡Çϰųª, simpleÇÑ ¼öº¹ Ä¡·á¸¦ ÇÑ´Ù.
9. age of the patient
1) very young patient
(1) ¾Ç°ñ growth°¡ ³¡³­ ÈÄ¿¡ ÇØ¾ß ÇÑ´Ù.(BoneÀÇ growth, development¿¡ ÁöÀåÀ» ÁֹǷÎ)
(2) crownÀÇ ±æÀ̰¡ ¾ÆÁ÷ ª´Ù.(eruptionÀÌ ºÒÃæºÐ)
(3) pulp chamber, pulp hornÀÌ Å©¹Ç·Î pulp³ëÃâ ¿ì·Á - RPD·Î ÇÑ´Ù
2) very old patient
(1) ±³ÇÕ·ÂÀ» ÁöÅÊÇÏÁö ¸øÇÑ´Ù. - tissue resistance°¡ ³·¾Æ »õ·Î¿î load¸¦ °¨´çÇÏÁö ¸øÇÔ.(»ý¸®Àû turn over rate°¡ ³·´Ù)
(2) periodontal support°¡ ÁÁÁö ¾Ê´Ù.
10. long period of missing
Ä¡¾Æ missing ÈÄ, Àå½Ã°£ Áö³­ °æ¿ì. ´ëÇÕÄ¡, ÀÎÁ¢Ä¡¸¦ ¹ßÄ¡ÇØ¾ßÇÒ °æ¿ì°¡ ¹ß»ý
1) missing space·Î ÀÎÁ¢Ä¡ÀÇ tilting
2) ´ëÇÕÄ¡ÀÇ elongation
3) bone change: ÇÏÁßÀ» °ßµô ¼ö ¾ø´Â ÇüÅÂÀÇ supporting bone
4) TMJ problemÀÌ ¹ß»ý
5) chewing cycle ÀÚü°¡, Ä¡¾Æ°¡ ¾ø´Â »óÅ¿¡ adaptationµÇ¾î ÀÖ´Ù.
o tilting µÇ¾î ÀÖ´Â Ä¡¾Æ´Â Áö´ëÄ¡·Î »ç¿ëÇÒ ¼ö ¾ø´Ù.
Tylman: 24 µµ°¡ Çã¿ë Çѵµ
bite force°¡ long axis·Î °¡Áö ¸øÇϹǷΠpath¿¡ ¸ÂÃç ±ðÀ» ¶§ pulp ³ëÃâ À§Çè.
mesial wall°ú distal wallÀÌ parallelÇÏÁö ¸øÇϰí taper µÇ¹Ç·Î. retentionÀ» ¾ò±â Èûµé´Ù.

Considerations of periodontal factor
bridge Á¦ÀÛ Àü¿¡ ¹Ýµå½Ã periodontiumÀÇ »óŸ¦ Á¡°Ë(bridge ÈÄ¿¡µµ Á¤±âÀû checking ÇÊ¿ä - ¾à 6°³¿ù¸¶´Ù)
occlusal adjustment and splinting
TBI, scaling and root planning
periodontal surgery;
curettage
flap operation
gingivectomy
gingival graft
bone induction
root resection
 
Orthodontic repositioning
tilting toothÀÇ Á¤»óȸº¹(long axis¿¡ ¸Â°Ô ±³Á¤)
-3rd molar tilting ¿¡´Â ±³Á¤¿¡ ÀÇÇÑ uprightingÀÌ °¡Àå ¹Ù¶÷Á÷ÇÔ
 
Extensive caries
1) vital toothÀÎ °æ¿ì
¿ÏÀüÇÑ caries removal ÈÄ, Dycal µîÀÇ ÇÊ¿ä ¾àÁ¦¸¦ ¹Ù¸¥´Ù.
°æ¿ì¿¡ µû¶ó amalgam fillingÀ» Çϱ⵵ ÇÑ´Ù.
# ¹Ýµå½Ã ¼öº¹ÇÏ¿©¾ß ÇÒ °æ¿ì
a) cervical margin ÂÊ¿¡ caries ½Ã¿¡´Â ¹Ýµå½Ã amalgam filling
b) ³Ê¹« ½ÉÇØ¼­ supporting tooth form ȸº¹½Ã amalgam filling
c) thermal shock·ÎºÎÅÍ pulp º¸È£°¡ ÇÊ¿ä½Ã¿¡µµ baseÈÄ amalgam filling
2) non - vital toothÀÎ °æ¿ì
endo. Tx. °¡´ÉÇÒ ¶§ Áö´ëÄ¡·Î »ç¿ë °¡´É
root apex¿¡ rareficationÀÌ ¾ø´Â °æ¿ì
- pin retained amalgam core
resin
- post & cast core

 
Splinting
1) rigid joint·Î ÀÎÁ¢µÈ µÎ°³ ÀÌ»óÀÇ Ä¡¾Æ¸¦ ¿¬°áÇÏ´Â °Í.
2) ¸ñÀû
(1) Ante's law¿¡ ÀûÇÕ µÇµµ·Ï Çϱâ À§Çؼ­
(2) Ä¡¾ÆÀÇ ÁöÁö´É·Â Çâ»ó - µ¿¿äµµ °¨¼Ò
(3) ±³ÇÕ·ÂÀÇ ºÐ»ê
3) crown & bridge¿¡¼­ÀÇ indication
(1) primary abutmentÀÇ supporting structure°¡ ¾àÇØÁ® ´õ °­ÇÑ secondary abutment·Î supportÀÇ º¸Ãæ
(2) curved arch¿¡¼­ counterbalancing retentionÀ» ¾ò±â À§ÇØ.
 
Path of insertion(POI)
1) Á¤ÀÇ
º¸Ã¶¹°ÀÌ ÁÖÀ§ÀÇ ¸ðµç Ä¡¾Æ¿¡ Ãø¹æ ¾Ð·ÂÀ̳ª ºñƲ¸²À» ÁÖÁö ¾Ê°í µ¿½Ã¿¡ ÀåÂø, ö°ÅµÉ ¼ö ÀÖ´Â lineÀ̳ª ¹æÇâ
2) Ä¡¾ÆÀÇ long axis ¹æÇâÀ¸·Î ÇÏ´Â °ÍÀÌ °¡Àå ¹Ù¶÷Á÷
abutment ÁÖÀ§ ÀÎÁ¢Ä¡¾Æ°¡ malaligned µÇ¾úÀ» ¶§
i)ÀÎÁ¢Ä¡¾Æ¿¡ ¸Â°Ô POI À» º¯È­½ÃÄÑ °áÁ¤ÇØ ÁØ´Ù.
ii) ÀÎÁ¢Ä¡¾Æ¸¦ grindingÇϰųª restorationÇÔ
 
Surveyor
vertical armÀ» ÃàÀ¸·Î horizontal armÀÌ Á¿ì·Î ¿òÁ÷ÀÓ.
vertical spindleÀÌ ÀÖ¾î »óÇÏ·Î ¿îµ¿
tableÀÇ tilting °¡´É
- path of insertionÀ» °¡¸§ÇØ º¼ ¼ö ÀÖ´Ù.
RPD¿¡¼­ undercutÀÇ ¾çÀ» ¾Ë ¼ö ÀÖ´Ù.
Áö´ëÄ¡ÀÇ »èÁ¦·®À» °¡¸§ÇØ º¼ ¼ö ÀÖ´Ù.
crown & bridge¿¡¼­ surveyorÀÇ »ç¿ë ¸ñÀû
1. compatible path of insertionÀ» ã¾Æ ÁÜ
2. Áö´ëÄ¡ÀÇ reduction ¾çÀ» ÃÖ¼Ò·Î Çϱâ À§ÇÔ
 
Missing span length - spring action
- bending(deflection)ÀÇ ¾çÀº Pontic ±æÀÌÀÇ 3 Á¦°ö°ú ºñ·ÊÇϰí, ponticÀÇ occlusogigival µÎ²²ÀÇ 3Á¦°ö¿¡ ¹Ýºñ·Ê
- spring actionÀº bridgeÀÇ µÎ²²·Î º¸Ãæ½ÃŲ´Ù.
±æ¾îÁú¼ö·Ï µÎ²²¸¦ Áõ°¡½ÃŰ³ª, ÀÌ¿¡ ÇѰ谡 ÀÖ´Ù.
 
Canine replacement bridge
ÇϾǺ¸´Ù »ó¾ÇÀÇ °ßÄ¡ »ó½Ç½Ã bridge·Î ¼öº¹Çϱ⿡ ºÒ¸®
 
Abutment in abnormal position
1) long axis°¡ ¸ÂÀ¸¸é, ±³Çո鸸ÀÇ rotationÀº º°¹®Á¦°¡ µÇÁö ¾Ê´Â´Ù.
(pulp ³ëÃâ¿¡ Á¶½ÉÇϸ鼭 normal formÀ» ¸¸µé ¼öµµ ÀÖ´Ù)
2) tilting - ±³Á¤ÀÌ ÇÊ¿ä
malocclusion
embrasure space
 
Preparing of opposite arch
´ëÇÕÄ¡ÀÇ elongation, tilting½Ã occ planeÀÇ continuity°¡ ¾øÀ½(curve of Wilson À̳ª curve of Spee°¡ ºñÁ¤»óÀû)
- Á¤»óÀû bridge°¡ µÇ±â Èûµé¹Ç·Î
´ëÇÕÄ¡¸¦ grindingÇϰųª restoration. Endo. Tx ÈÄ crown, ¹ßÄ¡ µîÀ» ÇÑ ÈÄ bridge Á¦ÀÛ
 
Requirement of good restoration
1) protection(pulp, tooth fracture, inflammation)
2) comfort
3) esthetic(shape, color µî)
4) durability(strength, retention)
5) utility
 
Anterior component of force
Ä¡¾Æ´Â mesial tiltµÇ¾î ±³Çսà Àü¹æÀ¸·Î ÈûÀÌ ÀÛ¿ë - ÀÌ ¶§¹®¿¡ ¸ðµç Ä¡¾Æ°¡ ±Ù¿øÀ¸·Î tight contactµÇ¾î dental arch stabilize.
non rigid connectorÀÇ À§Ä¡µµ anterior vector of force ¶§¹®¿¡ missing spanÀÇ Àü¹æ Áö´ëÄ¡ÀÇ distal¿¡ keyway Çü¼º.
<Diagnostic castÀÇ Á¦ÀÛ>
1. »ó. ÇÏ¾Ç full archÀÇ impressionÀ» alginate·Î 䵿
ÀλóÀçÀÇ flow°¡ ³ôÀ¸¹Ç·Î tray¿¡ ´ã¾Æ¼­ »ç¿ë(ÀûÀýÇÑ tray ÇÊ¿ä)
-tray Á¾·ù-
plastic
metal
ready made stock tray(S. M. L. XL)
individual tray(=custom tray): Á¤È®¼º
perforated tray: ±¸¸ÛÀ» ÅëÇØ Èê·¯³ª¿Í alginate ¿Í trayÀÇ locking
rim lock tray: ±¸¸ÛÀÌ ¾ø°í, °¡ÀåÀÚ¸®¸¦ ö»ç·Î µÑ·¯¼­ locking
- Procedure -
1) tray selection(size. soft tissue¿¡ ¾Ð·ÂÀÌ °¡ÇØÁö´Â°¡ ¿©ºÎ)
2) ȯÀÚÀÇ ±¸°­À» ±ú²ýÀÌ ÇÑ´Ù
3) alginate mixing
(1) scoop¸¦ ÀÌ¿ëÇÏ¿© ¹°°ú powder¸¦ measuringÇÏ¿© rubber bowl¿¡ ³Ö´Â´Ù.
(2) figure of 8
(3) water temp°¡ Áß¿ä - chemical reactionÀ̹ǷÎ
78¢µ(21¡É) ¹°·Î mixingÇÏ¿© 1ºÐ ³»·Î ³¡³ª¾ß ÇÑ´Ù.
4) tray¿¡ mixing mat.À» ä¿î´Ù
ÀϺθ¦ ¼Õ°¡¶ô¿¡ ¹¯Çô Áß¿ä½ÃµÇ´Â ±³ÇÕ¸é µî¿¡ ¹¯Èù´Ù(±âÆ÷°¡ »ý±â°Ô µÇ¹Ç·Î)
5) ¿·À¸·Î µ¹·Á¼­ ±¸°­¿¡ ³Ö´Â´Ù.
vestible: lip, cheekÀ» µé¾îÁָ鼭 ´­·¯ÁØ´Ù
upright positionÀ¸·Î head¸¦ À§Ä¡ÇÏ¿© ³Ñ¾î°¡Áö ¾Ê°Ô ÇÑ´Ù.
6) setting: 4 ºÐ
saliva ºÐºñ°¡ ¸¹Àº »ç¶÷Àº suction.
7) ÀåÂøÈÄ, ´­·¯ÁØ ´ÙÀ½¿¡´Â Á¿ìÃø, ¼Ò±¸Ä¡ ºÎÀ§¸¦ holdingÇØÁØ´Ù.
8) cheek, lipÀ» Á¥Çô¼­, °ø±â°¡ À¯ÀÔµÇ°Ô ÇÏ¿© Á¦°Å
´Ü¼û¿¡ »©³½´Ù.(¼ÕÀ¸·Î protectionÇÏ¿© ´ëÇÕÄ¡ÀÇ Ä¡¾Æº¸È£)
9) running water¿¡ ¾ÄÀº ÈÄ, stone mixingÀ» ÇÑÂÊ distal end¿¡ ¼Ò·®¾¿ ¹ß¶ó, vibrator¿¡ µÎ¸é ±³ÇÕ¸é µû¶ó Èê·¯ µé¾î°¨.
- ±³Çո鿡 ´Ù ä¿öÁ® ±âÆ÷°¡ »ý±âÁö ¾Ê°Ô Çϱâ À§ÇØ
- stoneÀ» ä¿î´Ù.
10) baseÁ¦ÀÛ
stoneÀ» thick mixingÇÏ¿© ´Ùµë¾îÁØ´Ù.
11) articulator¿¡ mountingÇÏ¿© ¿Ï¼º
 
Mandibular movement
1) vertical
(1) hinge mov.: 2cm Á¤µµ
(2) protrusion
hinge openingÀ» Å©°Ô ÇÒ ¶§, µ¿½Ã¿¡ ¹ß»ý
2) horizontal
working side ÃøÀ¸·Î lateral mov ÇÒ ¶§
1. working sideÀÇ TMJ¸¦ Áß½ÉÀ¸·Î ¹Ý´ëÃø nonworking side°¡ rotationÇϸ鼭 ¿òÁ÷ÀÓ
2. working side ÂÊÀ¸·Î mandibleÀÇ bodily sideshift ¹ß»ý
- Bennett movement
3) frontal
working side·Î ¾çÃø TMJ°¡ ¹Ì²ø¸®¸é¼­, ¿òÁ÷ÀÓ
 
Articulator ¶õ?
1. ȯÀÚÀÇ ÇϾǰñÀÇ ¿îµ¿À» ¸ð¹æÇؼ­ ÀçÇö½ÃÄÑ ÁÙ ¼ö ÀÖ´Â ±â°èÀûÀÎ ÀåÄ¡
2. ȯÀÚÀÇ TMJ¿Í À¯»çÇÑ ±¸Á¶¸¦ °®´Â
mechanical fossa
condylar element
3. ¸ðÇüÀ» ºÎÂøÇÒ ¼ö ÀÖ´Â mounting plate
4. upper jaw member¿Í lower jaw member·Î ±¸¼º
5. adjustable articulator
fully
semi
non adjustable articulator
# Semi adjustable articulator
¾à°£ÀÇ error´Â ¹«½Ã. ´ëºÎºÐ Á¶Àý °¡´É
hinge axis¿Í dental arch °£ÀÇ °Å¸®°ü°è Á¶Àý
intercondylar distance Á¶Àý
face bow
check bite: starting point, end point
intercondylar distance
1) face bow
(1) »ç¿ë¸ñÀû
hinge axis¿Í »ó¾Ç dental arch °£ÀÇ À§Ä¡°ü°è¸¦ ±³ÇÕ±âÀÇ hinge axis¿Í »ó¾Ç ridge¿ÍÀÇ 3Â÷¿øÀû °ü°è·Î ÀçÇö
(2) ±¸¼º
face bow frame
bite fork
bite fork¿¡ wax·Î ä¿ö ±³Çո鿡 ´©¸£°í, face bow frameÀÇ ¾ç³¡À» TMJÀÇ hinge axis¿¡ ¸ÂÃß¾î Á¶Àý - ±³Çձ⿡ ¸ÂÃá´Ù.
(3) »ó¾ÇÀ» ±³Çձ⿡ mounting ÇÑ ÈÄ, ÇϾÇÀÇ cast´Â wax plate¸¦ ÀÌ¿ëÇÑ CO, CR wax Bite·Î Á¶Àý - »óÇÏ¾Ç Ä¡¾ÆÀÇ indentationÀÌ ³ª¿À¸é À̵鿡 ¸Â°Ô »ó, ÇÏ¾Ç cast¸¦ ºÎÂøÇÏ¿©, »ó, ÇÏ¾Ç °ü°è À¯Áö½ÃŲ´Ù.
interocclusal registration: starting point¿Í end point check bite¸¦ ÀÌ¿ëÇØ¼­ posterior guidance Á¶Àý
: lateral mov.
- Pt.ÀÇ Mand. mov.¿Í ¿ÏÀüÀÏÄ¡ÇÏ°í ±³Çո鵵 ÀÏÄ¡ÇÏ´Â diagnostic cast°¡ ¿Ï¼ºµÈ´Ù.
2) »ó¾Ç mounting
face bow¸¦ ±³Çձ⿡, bite fork¸¦ »ó¾Ç ¸ðÇüÀÇ ±³Çո鿡 ¸ÂÃß°í
3) ÇÏ¾Ç mounting
centric registration record¸¦ »óÇÏ¾Ç Ä¡¾ÆÀÇ ±³ÇÕ¸é »çÀÌ¿¡ ¹°¸®°í

4) posterior guidance Á¶Àý
checkbite ÀÌ¿ë

5) incisal guidance Á¶Àý