Personal Information
Name: AB
DOB:12/09/2013
Age on presentation: 10 years.
Gender: Male.
Accompanied by his mother.
Consent signed by his mother.
History
Chief Complaint: Palatally displaced tooth 11.
History of Chief Complaint: AB, a 10-year-old, experienced dental trauma last year while playing with his siblings at home, resulting in his upper front tooth (11) being displaced backwards. His mother reported that there was no bleeding or pain at the time. Initially, they sought care at a private clinic. However, due to financial limitations, the clinic referred them to the university faculty for further treatment.
Following the referral, AB was seen in the undergraduate clinic, where his dental caries were addressed, and his condition was monitored over a six-month period. After this follow-up, he was referred to the MSc clinic to address the palatally displaced tooth 11.
Medical History:
AB is generally a healthy child with no significant childhood illnesses. He has received all his vaccinations and has no known allergies.
Extra-oral examination
AB's facial appearance was generally symmetrical and normal; however, he presents with vertical maxillary excess. No palpable lymphadenopathy was noted. The TMJ functioned properly with no signs of clicking, or pain. and his muscles are relaxed, with no abnormalities detected.
Orthodontic Evaluation
Morphological Examination of the Face:
AB presents with a convex profile, a prognathic maxilla, a retrognathic mandible.
Short upper lip.
Incompetent lips.
Chin to cranium is retrognathic.
Occlusal analysis:
Molar classification: Right class II, Left class II
Maxillary midlines: 1mm shift to the left midsagittal plane.
Mandibular midline: Shifting to the left (2mm) at rest and occlusion.
Overjet: 7 mm
Overbite: 8 mm
Crossbite: No Crossbite
Buccal canine bulges: palpable on the left side
Habits: He used to suck on his lower lip
Radiographic examination
No anomalies or pathologies. The bone and soft tissue anatomy appeared normal, with all permanent teeth accounted for except for the wisdom teeth. The estimated dental age is 10 years, which corresponds to the inter-transitional stage. The 13 appears larger than the 23, which indicates palatal impaction; an upper occlusal view is needed to confirm (vertical parallax technique). However, there is no space for the 13 and 23 to erupt. Leeway spaces are compromised in all four quadrants.
Steiner Analysis:
1-Skeletal Analysis:
SNA angle: 88(82+/- 2)
SNB angle: 80 (80+/- 2)
ANB angle: 8 (2+/- 2)
Occlusal plane angle: 14 (14)
Mandibular plane angle: 41 (32)
2-Dental Analysis:
Upper incisor to NA angle: 14 (22)
Upper incisor to NA linear: 3mm (4)
Lowe incisor to NB angle: 23 (25)
Lower incisor to NB linear: 6mm (4)
Inter incisors angle: 140(130)
3-Soft Tissue Analysis:
S-line: lips in front of S-line 3mm
Deduced from the Cephalometric analysis:
Skeletal classification:
Class II skeletal pattern.
Maxilla is prognathic.
Vertical growth pattern.
Dental Analysis:
Retroclined UI.
Retruded UI.
Retroclined LI.
Protruded LI.
Bimaxillaryproclination.
Soft Tissue Analysis:
S-line: protrusive lips.
Model analysis
Arch form: U shape.
Teeth present: 16,55,14,12,11,21,22,63,24PE,65,26.
Arch form: U-shaped.
Teeth present: 36,75,34PE,33,32,31,41,42,43,44PE,85,46.
Maxilla/Mandible:
Molar classification: Class II on both sides
Increased overjet
space analysis
Tanaka & Johnston Analysis
M-d width of Permanent Incisors
Tanaka & Johnston Analysis:
M-d width of Mandibular Permanent Incisors
7+6+6+7= 26
Estimated premolars and canine in one quadrant: ½ of the m-d width of the lower four incisors+11mm for maxilla, 10.5mm for mandible
Maxilla: 26/2+11= 24mm (1 quadrant); Mandible: 26/2+10.5= 23.5 ( 1 quadrant)
M-d width of canines&premolars in Maxilla 24x2= 48mm
M-d width of canines&premolars in Mandible 23.5x2=47mm
Space required in lower arch for incisors,canines&premolars:
47mm+26mm=73mm
Space required in upper arch for incisors,canines&premolars:
48mm+35mm=83mm
The space discrepancy is -9mm in the maxilla and -9.5mm in the mandible. AB has been referred to the orthodontic department and placed on their waiting list. Given the -9mm space discrepancy in the maxilla, along with the additional space required to correct the 7mm overjet, extractions will be necessary to create sufficient space. This treatment goes beyond the scope of interceptive orthodontics.