Fixed Anterior Alignment – The Power of Digital Planning

by Dr Nick Simon

Dr Nick Simon is a former IAS teacher and Mentor. He was a delegate on the first cohort of the Advanced Fixed Course taught by Prof Ross Hobson. 

CONTACT INFORMATION

The Ealing Dental Practice
6 Drayton Green Road,
West Ealing,
London,
W13 8RY

Website: Click Here

Case Summary

The problem in this case  was that this patient already had upper premolar extractions during previous teen age orthodontics, yet he presents with retroclined upper incisors and  severe crowding of his lower labial segment –  LL2 was blocked out buccally and aligning the lower teeth within the alveolar bone on a non extraction basis would compromise periodontal health.

Therefore lower arch treatment would require extraction. If we aligned the upper teeth, the central incisors would procline and increase arch length. If we extract in the lower we could reduce arch length.

The question posed was what would the resulting overjet look like after treatment, would it be acceptable? I hope you agree that the finished result correlates closely with the Archwise predicted outcomes.

This case demonstrates the advantage of digital planning with Archwize to produce predicted outcomes.

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Measurement Result
Skeletal Pattern Class II - Moderate
FMPA High
Lower Face Height Average
Facial Asymmetry No
Soft Tissues Details: Competent lips, obtuse NLA, average smile line recession noted UL2, UR2, UR6
Teeth Present 7 6 5 3 2 1 | 1 2 3 5 6 7 8 8 7 6 4 3 2 1 | 1 2 3 4 6 7 8
Incisor Classification Class II - Div 2
Overjet 2mm
Overbite 60% overlap
Centerlines Upper | Lower Left by 2mm
Displacement on closure No
Molar Relationship Right: Class I, Left: Class I
Canine Relationship Right: Class I, Left: Class I
Crossbite No
Crowding Upper Arch: 4mm, Lower Arch: 9mm
KEY STAGES IN TREATMENT PROGRESS
DATE: Dec 2017 STAGE: Bond up uppers, lower extraction
DATE: Jan 2017 STAGE: Lower bond up, upper centrals had sufficiently advanced

MID-TREATMENT PHOTOGRAPHS:

Extraction of LL2 and bond up of uppera only until some proclination of the upper incisors would allow placement of the lower incisor brackets without interference.

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Below

First photo ( Before Images), Second photo ( After images) Bottom image (predicted outcome Archwize). A good correlation was achieved between the predicted Archwize outcome and the final achieved outcome.

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ARCHWIZE PREDICTED OUTCOME
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ARCHWIZE PREDICTED OUTCOME
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ARCHWIZE PREDICTED OUTCOME
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ARCHWIZE PREDICTED OUTCOME
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ARCHWIZE PREDICTED OUTCOME

The knowledge and experience I gained from IAS Academy’s Advanced Course proved invaluable when treating this case and also gave me the confidence to treat other advanced cases that I previously would have referred.

I’d encourage anyone with a basic knowledge of orthodontics to take their skills to the next level with the academy’s advanced training. The mentoring is first-class, the is support excellent, and the course syllabus is absolutely comprehensive—plus, I met many new friends while training!