Name of Medical College /Institute: Dhaka Dental College Name of the University: Dhaka University (U. Dhaka) Government/ Non-Government: Govt. Address: Mirpur-14, Dhaka-1206 Tel- 8017146 In Brief
Category: Orthodontics
Cephalometric interpretation
Cephalometric interpretation For Caucasians, compare individual values with Eastman norms: SNA 81° ± 3°; SNB 78° ± 3°; ANB 3° ± 2°; S-N/Max plane 8° ± 3°; 1 to Max plane 109° ± 6°; T to Mand plane 93° ± 6°; Interincisal angle 135° ± 10°; MMPA 27° ± 4°; Facial % 55 ± 2%. [...]
Cephalometric analysis : Technique, Aim, Indication, Interpretation
Cephalometric analysis : Technique, Aim, Indication, Interpretation Definition Evaluation and interpretation of both lateral and posteroanterior (PA) radiographs of the head ( usually confined to the former). Taking the radiograph Standardised technique to ensure reproducibility and minimise magnification: Frankfort plane horizontal, ear posts in the external auditory canal with the central X-ray beam directed through [...]
Orthodontics: development, assessment and treatment planning MCQ question with answers
Orthodontics: development, assessment and treatment planning MCQ question with answers Question 1. The maxilla: a. Is derived from the second pharyngeal arch b. Completes growth in length before growth in width c. Grows partly by passive displacement of its articulation with the cranial base d. Is translated downwards and forwards by the condylar cartilage e. [...]
Risks of orthodontic treatment
Risks of orthodontic treatment Root resorption Potential problem : 0.5-1 mm loss of root length common, but large individual variation Greater resorption with fixed than removable appliances Greater risk with traumatised teeth, previous root resorption, blunt or pipette-shaped roots Demineralisation Potential problem : Greater risk with fixed than removable appliances Risk increases with poor oral [...]
The Index of Orthodontic Treatment Need : dental health component
The Index of Orthodontic Treatment Need : dental health component Grade 1 None Extremely minor malocclusions including displacements <1 mm Grade 2 Little a. Increased overjet >3.5 mm but <6 mm with competent lips b. Reverse overjet >0 mm but <1 mm c. Anterior or posterior crossbite with <1 mm discrepancy between retruded contact position and [...]
Maturational changes in the occlusion
Maturational changes in the occlusion The occlusion of any child must be seen as dynamic and responding to changes in the facial skeleton. As the face continues to grow throughout the late teens and into adulthood, changes in the dentition and occlusion follow. There is an increase in lower incisor crowding. This has been observed [...]
Arch length, Arch circumference, Intercanine width, Arch width
Arch length, Arch circumference, Intercanine width, Arch width Arch length Measurement Perpendicular distance from 1/1 contact point to a line contacting the distal surfaces of e/e or 5/5 Developmental changes Maxilla: slight increase 6-10 years; followed by 1-2 mm decrease Mandible: no increase 6-10 years; at 10-17 years 1-2 mm decrease Arch circumference Measurement Line [...]
