Key Words: radius of curve of spee, cephlogram, vertical measurements
The original article was written in 1890 by Ferdinand Graff Spee, and it has been recently represented that this anteroposterior curve, or curve of Spee, was defined as the anatomical curve established by the occlusal alignment of the teeth, as projected onto the median plane, beginning with the cusp tip of the mandibular canine and following the buccal cusp tips of the premolar and molar teeth, continuing through the anterior border of the mandibular ramus, and ending at the anterior aspect of the mandibular condyle.
Keywords: ANB, Curve of Spee, Maxillo-mandibular discrepancy.
Curve of Spee that exists in ideal dental occlusion was first described by F Graf Von Spee in 189022.
The broadricks flag permits construction of the curve of spee in harmony with anterior condylar guidance allowing total posterior tooth disocclusion on mandibular protrusion.
DISCUSSION: The Broadrick flag is a useful tool in prosthodontic and restorative dentistry, as it identifies the most likely position of the centre of the curve of Spee. However, this position should not be regarded as fixed or immutable.
Results: Mean depth of Curve of Spee in class I malocclusion was 2.4mm, in class II div 1 malocclusion mean depth was 2.8 mm, in class II div 2 malocclusion mean depth was 4.3 mm, in class II subdivision mean depth was 2.5mm in class III malocclusion mean depth was 2mm.
Conclusion: The curve of Spee was deepest in class II div 2 malocclusion.
A deep curve of spee
was the highest contributing dental factor to a deep bite, while decreased mandibular plane angle was highest contributing skeletal factor to a deep bite.
Evaluation of skeletal and dental parameters in individuals with variations in depth of Curve of Spee. Indian Journal of Orthodontics and Dentofacial Research 2016;2(4):184-189.
Investigation Of Variation In Curve Of Spee, Over Jet and Overbite Among ClassI And Class-II Malocclusion Subjects And To Find Sexual Dimorphism, If Any.
Key Words: Curve of Spee, malocclusion, mandibular plane, vertical eruption, teeth.
Lateral view of the human dentition reveals an anatomic plane which is generally concave with the concavity facing upward.1 In 1890 Ferdinand Graf Von Spee2 defined a line of occlusion by using skulls with abraded teeth which is now termed as curve of Spee (COS).
Results showed that the mesiobuccal cusp of the first molar was the deepest part of the Curve of Spee, and eruption of mandibular molars (M7-MP/S-MP) was more significantly related to depth of Curve of Spee as compared to eruption of mandibular incisors (L1-MP/S-MP).
Key Words: Curve of Spee, Vertical eruption, Class II Division 1.