• Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

Card Range To Study

through

image

Play button

image

Play button

image

Progress

1/54

Click to flip

Use LEFT and RIGHT arrow keys to navigate between flashcards;

Use UP and DOWN arrow keys to flip the card;

H to show hint;

A reads text to speech;

54 Cards in this Set

  • Front
  • Back
What is FH-SN angle?
Angle formed between frankfurt horizontal plane and Sella-Nasion Plane. (7 +/- 3 degrees)
Angle formed between frankfurt horizontal plane and Sella-Nasion Plane. (7 +/- 3 degrees)
What is S-N-B?
Angle formed between the Sella-Nasion Plane and Nasion-B plane (80 +/-4 degrees)
Angle formed between the Sella-Nasion Plane and Nasion-B plane (80 +/-4 degrees)
What is A-N Perp?
Distance from A point to Nasion Perpindicular (0 +/- 3)mm)
Distance from A point to Nasion Perpindicular (0 +/- 3)mm)
What is Pg-N Perp?
Distance from Pg (Pogonion) to Nasion perpindicular (-1 +/- 3mm)
Distance from Pg (Pogonion) to Nasion perpindicular (-1 +/- 3mm)
What is SN-MP?
Angle formed betwee the Sella-Nasion plane and the Mandibular plane (32 +/- 5 degrees) 

(Go=Gonion, Me=Menton)
Angle formed betwee the Sella-Nasion plane and the Mandibular plane (32 +/- 5 degrees)

(Go=Gonion, Me=Menton)
What is Mx I-SN?
Angle formed between the Upper incisor and the Sella-Nasion Plane (106+/- 8 degrees)
Angle formed between the Upper incisor and the Sella-Nasion Plane (106+/- 8 degrees)
What is Mx I- (N-A)?
Angle formed between the Upper incisor and Nasion-A plane (22+/- 2 degrees)
Angle formed between the Upper incisor and Nasion-A plane (22+/- 2 degrees)
What is (Md I)-(MP)?
Angle formed between Lower incisor axis and the Mandibular plane (90+/-1 degrees)
Angle formed between Lower incisor axis and the Mandibular plane (90+/-1 degrees)
What is I-I?
Interincisal angle. Angle formed between the upper and lower incisor axis
Interincisal angle. Angle formed between the upper and lower incisor axis
What is S-N-A?
Angle formed between Sella-Nasion plane and the Nasion-A plane (82+/- 3 degrees)
Angle formed between Sella-Nasion plane and the Nasion-A plane (82+/- 3 degrees)
What is A-N-B?
Angle formed between the Nasion-A plane and the Nasion-B plane (2 degree +/- 3 degrees)
Angle formed between the Nasion-A plane and the Nasion-B plane (2 degree +/- 3 degrees)
What is the Facial angle?
Angle between the Frankfurt horizontal plane and the Nasion-Pogonion plane. (90+/-3 degrees)
Angle between the Frankfurt horizontal plane and the Nasion-Pogonion plane. (90+/-3 degrees)
What is the Y axis?
Angle between the Sella-Nasion plane and the Sella-Gnathion plane (65+/- 4 degree)
Angle between the Sella-Nasion plane and the Sella-Gnathion plane (65+/- 4 degree)
What is PP-MP/Palatal-Mandibular
Angle between the Palatal (PNS-ANS) plane and the Mandibular plane. (25 +/- 4 degrees) 

Go= Gonion, Me= Menton) 
PNS=Posterior nasal spine 
ANS=Anterior Nasal Spine
Angle between the Palatal (PNS-ANS) plane and the Mandibular plane. (25 +/- 4 degrees)

Go= Gonion, Me= Menton)
PNS=Posterior nasal spine
ANS=Anterior Nasal Spine
What is the Mx I-A-vert ?
Distance from the incisal edge of the upper central incisor to point A (5mm)
Distance from the incisal edge of the upper central incisor to point A (5mm)
What is Mx I-A-(N-A)-Distance?
Upper incisor tip-(Nasion-A point) (4 +/-1 mm)
Upper incisor tip-(Nasion-A point) (4 +/-1 mm)
What is Md I-A Pg?
Distance from the incisal edge of the lower central incisor to A-Pg (3 +/- 2mm)
Distance from the incisal edge of the lower central incisor to A-Pg (3 +/- 2mm)
What is LL-E plane?
Lower Lip-E plane. Distance from the lower lip to the E plane. 

E plane = Pronasale - Skin Pogonion plane
Lower Lip-E plane. Distance from the lower lip to the E plane.

E plane = Pronasale - Skin Pogonion plane
What is the significance of the FH-SN angle being LESS than normal?
SN plane too horizontal (Blue Arrow)
SN plane too horizontal (Blue Arrow)
What is the significance of the FH-SN angle being MORE than normal?
SN plane too inclined (Blue arrow)
SN plane too inclined (Blue arrow)
What is the significance of the S-N-A angle being LESS than normal?
Retrusion of A point. Suggests Skeletal horizontal maxillary deficiency (Blue arrow)
Retrusion of A point. Suggests Skeletal horizontal maxillary deficiency (Blue arrow)
What is the significance of the S-N-A angle being MORE than normal?
Increased. Indicates protrusion of A point. Suggests Skeletal horizontal maxillary excess
Increased. Indicates protrusion of A point. Suggests Skeletal horizontal maxillary excess
What is the significance of the S-N-B angle being LESS than normal?
Indicates retrusion of B point. Suggests horizontal mandibular deficiency (Micrognatism)
Indicates retrusion of B point. Suggests horizontal mandibular deficiency (Micrognatism)
What is the significance of the S-N-B angle being MORE than normal?
Indicates protrusion of B point. Suggests Skeletal horizontal mandibular access (Prognatism)
Indicates protrusion of B point. Suggests Skeletal horizontal mandibular access (Prognatism)
What is the significance of the A-N-B angle being LESS than normal?
Suggests Skeletal class three. Indicates a bad antero-posterior relationship between Maxilla and the Mandible
Suggests Skeletal class three. Indicates a bad antero-posterior relationship between Maxilla and the Mandible
What is the significance of the A-N-B angle being MORE than normal?
Suggests Skeletal Class II. Indicates bad anterio-posterior relationship between maxilla and Mandible
Suggests Skeletal Class II. Indicates bad anterio-posterior relationship between maxilla and Mandible
What is the significance of the A-N Perp distance being LESS than normal?
Indicates retrusion of A point. Suggests Skeletal horizontal maxillary deficiency
Indicates retrusion of A point. Suggests Skeletal horizontal maxillary deficiency
What is the significance of the A-N Perp distance being MORE than normal?
Indicates Protrusion of A point. Suggests Horizontal maxillary Excess
Indicates Protrusion of A point. Suggests Horizontal maxillary Excess
What is the significance of the Pg-N Perp distance being LESS than normal?
Indicates retrusion of Pg Point. Suggests Skeletal horizontal chin deficiency
Indicates retrusion of Pg Point. Suggests Skeletal horizontal chin deficiency
What is the significance of the Pg-N Perp distance being MORE than normal?
What is the significance of the facial angle being LESS than normal?
What is the significance of the facial angle being MORE than normal?
What is the significance of the Y angle being MORE than normal?
What is the significance of the Y angle being LESS than normal?
What is the significance of SN-MP angle being LESS than normal?
What is the significance of SN-MP angle being MORE than normal?
What is the significance of PP-MP angle being LESS than normal?
What is the significance of PP-MP angle being MORE than normal?
What is the significance of Mx I-SN angle being LESS than normal?
What is the significance of Mx-I-SN angle being MORE than normal?
What is the significance of Mx I-A Vert being LESS than normal?
What is the significance of Mx I-A Vert being MORE than normal?
What is the significance of Mx I-NA ANGLE being MORE than normal?
What is the significance of Mx I-NA ANGLE being LESS than normal?
What is the significance of Mx I-NA (Lin) being less than normal?
What is the significance of Mx I-NA (Lin) being more than normal?
What is the significance of Md I-MP being LESS than normal?
What is the significance of Md I-MP being MORE than normal?
What is the significance of Md I-A Pg being LESS than normal?
What is the significance of Md I-A Pg being MORE than normal?
What is the significance of I-I being Less than normal?
What is the significance of I-I being MORE than normal?
What is the significance of LL-E PLane being Less than normal?
What is the significance of LL-E PLane being MORE than normal?