Pacific Coast Society of Orthodontists Bulletin Summer 2020 - 34

PCSO Program Talk

Table 1. Responses to PCSO Survey on Class II Corrections
Oregon Health & Science University

1.	 Approximately what percentage
of the patient cases in your clinic
are growing patients? What percentage of the growing patients
have Class II malocclusions?

University of Washington

70%
35%-40%

*	73.6% of the population was 18 years or
younger at assignment (653/887)
*	44.6% of the Class II patient population was
18 years or younger at assignment (291/653)
*	63.0% of the population was 15 years or
younger at assignment (559/887)
*	46.3% of the Class II patient population 15
years or younger at assignment (259/559)
*	41.3% of the total patient population is Class II
Division 1, Class II Division 2, or Class II subdivision (366/887)

2.	Approximately what percentage
25%
of the patient cases in your clinic 35%-40%
are nongrowing patients? What
percentage of the nongrowing patients have Class II malocclusions?

*	26.3% were >18 years old at assignment
(233/887)
*	31.8% of the patients >18 years at assignment
were Class II of some kind (74/233)
*	36.9% were >15 years old at assignment
(327/887)
*	32.4% of the patients >15 years at assignment
were Class II of some kind (106/327)

3.	For growing patients with Class II 60%
skeletal and dental malocclusions, 40%
what is the ratio between those
treated with one-phase and those
treated with two-phase treatment protocols?

It depends at what age they show up and
if they want treatment at that point. Most
patients who present at an age where Phase
I is reasonable are usually given the option to
have it

4.	Is there a general treatment philosophy (one-phase vs two-phase
treatment protocols) for treating
Class II skeletal and dental malocclusions in growing patients at
the school?

In general, we render age-appropriate care
when we think it will be effective and the patient's behavior permits it. Ultimately, the faculty assigned to the case decides if treatment
is indicated at that point and what it will be

34	

No. Each attending faculty makes
the ultimate decision. The treatment protocol choice is based on
the effectiveness and efficiency of
the treatment, the patient's estimated motivation/compliance level,
the potential psychosocial benefits
of the treatment, and the risk of
incisal trauma

PCSO Bulletin    Summer 2020



Pacific Coast Society of Orthodontists Bulletin Summer 2020

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