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53 Cards in this Set
- Front
- Back
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Permanent Incisors |
Central and Later Max: #7-10 Mand: #23-26 |
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Permanent Incisors Function |
cut/incisal edge, speech and esthetics |
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Permanent Incisors Arch resemblance |
incisors in the same arch are similar but not to opposing arch |
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Permanent Incisors
Annotation |
7-10 23-26 |
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Incisor Class Traits Incisal edge |
incisal 2/3 of crown is compressed labiolingually |
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Incisor Class Traits Mamelons |
-joining the developmental lobes, usually in newly erupted teeth or in an open bite -attrition wears these off |
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Incisor Class Traits Position/Angulation of marginal ridges |
parallel to the long axis of the tooth |
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Incisor Class Traits Lingual fossa/cingulum |
concave and convex |
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Maxillary Incisor Arch Traits |
-Width is greater than mand. width -Marginal ridges are more prominent -Cingulum/lingual pit are more prominent -Root- equal dimensions -Labial surface is more rounded (view incisally) -Crown is wider mesial-distally -Wear facets- lingual incisal |
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Maxillary Central Incisors |
Eruption age- 7-8 Root Completed- 10 |
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Maxillary Central: Labial View |
-Widest- mesial-distal of any incisor -MI angle- at a right angle -Di angle- slightly rounded -Height of contour/crest of curvature-highest point of the tooth |
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Labial View Cont. |
-Mesial outline- contact close to incisal edge -Distal outline- more convex, contact junction of incisal and middle 1/3s -Facial surface- may see developmental grooves -Imbrication lines- faint elevated lines- cervical 1.3, parallel to CEJ -Root- conical (cone shaped) |
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Maxillary Central: Lingual View |
-Crown profile- converges toward lingual -Cingulum/fossa- concave/convex -Incisal ridge- newly erupted -Incisal edge- slopes with age -Marginal ridges- very pronounced -CEJ- very pronounced |
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Maxillary Central: Mesial View |
-Crests of Curvature: Cervical 1/3 -CEJ: very deep, most curved of any maxially -Root: in line |
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Maxillary Central: Distal View |
-Similar to mesial except CEJ -CEJ- more shallow dip -Distal Contact- slightly more cervical -Root: toward distal |
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Maxillary Central: Incisal View |
-Can see more facial than lingual -ML>DL outline -Cingulum- distal to midline -MMR and DMR- MMR linger because cingulum is more distal |
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Maxillary Lateral: Labial View |
-Smaller, except root may be longer -Rounded, especially MI and DI -Mesial contact- junction of incisal and middle 1/3 -Distal contact- center of middle 1/3 -Root- distal inclination |
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Maxillary Lateral: Lingual View |
-Outline same as labial -MMR/DMR more prominent -Deeper fossa/fit -CEJ- curved |
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Maxillary Lateral: Mesial View |
-Same as central, just smaller -CEJ- less curvature than central -Crest of Curvature- slightly more incisally placed compared to central |
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Maxillary Lateral: Distal View |
-Similar to mesial -CEJ- less curvature -DMR gives thicker appearance |
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Maxillary Lateral: Incisal View |
Same expect: cingulum prominent (smaller, centered); rounded facial surface |
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Anomalies/Variations |
-Labial Outline: centrals, tapering, square or oval; laterals, pegged -Labial lobes- central, deep grooves -Mamelons- vary in number -Cingulum- central talon cusp, lateral-lingual or exaggerated fossa -Root size- short or long |
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Mandibular Incisor Arch Traits |
-Narrowest teeth -Lateral>Central -MR and cingula are not prominent -Roots- wider labiolingually |
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Mandibular Central Incisor |
Eruption: 6-7 years old
Root complete: 9 years old |
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Mandibular Central Incisor: Labial View |
-MI and DI line angles/incisal edge -Contacts – both incisl 1/3 at same height -Mesial/distal outlines- converge equally to the cervical -CEJ – semi-circle -Root – narrow, distal inclination |
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Mandibular Central Incisor: Lingual View |
-Anatomy is faint -CEJ-more curvature due to the convergence of the crown lingually |
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Mandibular Central Incisor: Mesial View |
-Crests of Curvature- lingual and facial in cervical 1/3 Incisal edge-Slightly lingual to long axis -Root-Flat and broad |
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Mandibular Central Incisor: Distal View |
Same as mesial except: CEJ less curvature Developmental groove-Deeper on this aspect than on the mesial root surface |
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Mandibular Central Incisor: Incisal View |
-Bilateral symmetry -Dimensions-Greater labiolingually -Cingulum-Slightly to distal -Root |
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Mandibular Lateral Incisor |
-Eruption: 7-8 years old -Root completed: 10 years old |
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Mandibular Lateral: Labial View |
-Not symmetircal -Incisal edge sloped toward distal -Outline and line angles-Mesial outline greater, DI more rounded -Contacts-Both in incisal 1/3, with distal more cervical -Wider M-D than central |
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Mandibular Lateral: Lingual View |
-Cingulum-Offset, more distal than central -CEJ-Curvature is also slightly offset toward distal |
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Mandibular Lateral: Mesial View |
CEJ: More curve than distal |
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Mandibular Lateral: Distal View |
CEJ: Marginal ridge is thicker |
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Mandibular Lateral: Incisal View |
-Not at 90 degrees -Follows curvature of arch -Twisted towards canine |
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Variations |
-Labial surface inclination -Mamelons -Root curvature |
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Canines |
#6, 11, 22, 27 -Third from midline/transitional -Canines/cuspids |
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Canine Fuctions |
-Pierce, hold and tear food -Stongest tooth in the arch 1. cornerstone of occulusion 2. usually the darkest tooth 3. protects posterior teeth |
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Canine Class Traits |
-Cusp-large -Root- longest -Functional lingual surface- only cusped tooth that have this function |
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Maxillary Canine |
-Eruption: 11-12 years old -Root completed: 14-15 years old |
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Maxillary Canine Arch Traits |
-Incisal margin- occupies a 1/3 to 1/2 of crown height -Lingual anatomy- more pronounced -Labiolingual diameter- greater cervical |
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Maxillary Canine: Labial View |
Two cusp ridge to form the cusp (distal greater than mesial) -DCR > MCR – places cusp tip mesial of midline Outlines – distal much stronger convexity, large bulge Root – long and conical, distal inclination, concavities Imbrication lines – possible Crests of curvature: -Mesial - junction of middle and incisal 1/3 -Distal – middle 1/3, large bulge |
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Maxillary Canine: Lingual View |
-Two cusp ridges -Prominent MMR/DMR -Lingual ridge – extends from cusp to cingulum -Canines are the only teeth that have a lingual ridge |
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Maxillary Canine: Mesial View |
Crests of curvature
Labial outline- cervical 1/3 Lingual outline – cervical 2/3 convex, incisal 1/3 is flat Cusp – in long axis or just facial Root- greater labiolingual dimension CEJ- greater curvature on mesial |
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Maxillary Canine: Distal View |
Root- deeper concavity CEJ – slightly less than mesial |
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Maxillary Canine: Incisal View |
-Asymmetry- greater labiolingually -Labial 1/2> Lingual 1/2 -Developmental depressions -Variations 1. Cusp Sharpness 2. Degree of slope from cusp |
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Mandibular Canine |
Eruption: 9-10 years old Root Completed: 11-13 years old |
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Mandibular Canine Arch Traits |
-Cusp- not as pronounced -MMR/DMR- less convergence -Incisal margin- confined to incisal 1/4 -Lingual anatomy – less prominent -Contacts – more incisally placed |
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Mandibular Canine: Labial View |
-Outlines- straight below contact -Contacts- mesial incisal 1/3, distal junction of incisal and middle 1/3s -Cusp ridges – DCR > MCR -Root pointed -CEJ – slight arc |
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Mandibular Canine: Lingual View |
-Less anatomy -Root- distal inclination -CEJ- offset to distal, less curvature than labial |
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Mandibular Canine: Mesial View |
-Cusp tip- just lingual to long axis -Labial outline- convex arc -Lingual outline- flat to concave -Contact- middle to incisal 1/3s -CEJ - less curved than incisors |
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Mandibular Canine: Distal View |
-Contact- more cervically placed than mesial -CEJ- less curvature -Root- deeper groove than mesial |
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Mandibular Canine: Incisal View |
-Labial surface: 1 – grooves lesser or absent 2 – rounder towards mesial -Cingulum- offset to distal -Variation – root bifurcation in apical 1/3 |
