Pacific Coast Society of Orthodontists Bulletin Summer 2013 - (Page 14)

Class II, Division 2 Malocclusions Etiology, Development, Diagnosis and Some Aspects of Treatment Part I By Ib Leth Nielsen, DDS, MSc Figure 1. M.N. : 11-year, 2-month-old boy with Class II, division 2 malocclusion and a deep overbite. he Class II, division 2 malocclusion has puzzled a great many orthodontists over the years. How does it develop and progress to the degree shown in Figure 1? What are the etiological factors that lead to this specific arrangement of the front teeth? How should we treat it? These are just a few of the many questions that still need answers. In this article, we will discuss the etiology and development of this malocclusion and provide some guidelines for the correction of the Class II, division 2 malocclusion that are applicable to most cases. It is also my intent to discuss how to predict and anticipate the development of this malocclusion so as to enable the clinician to intercept the development at the right time (See Part II, in the next issue.). Important questions that relate to treatment include: T • • • Are extractions indicated in crowded cases? Should patients be treated early, in the mixed dentition, or when all teeth have erupted? After correction of a Class II-2 malocclusion, what is the preferred retention protocol? Around 1900, when Edward H. Angle defined and described this particular malocclusion,1 he referred to it as being characterized by having a Class II molar occlusion with retroclination of the upper front teeth. He also noted that the 14 P C S O B u l l e t i n • S u M M e R 2 0 1 3

Table of Contents for the Digital Edition of Pacific Coast Society of Orthodontists Bulletin Summer 2013

AAO House of Delegates Meets in Pennsylvania
Time to Invest in Education
Synergy & Diversity
AAO Trustee’s Report
My Nightmare
Class II, Division 2 Malocclusions: Etiology, Development, Diagnosis and Some Aspects of Treatment, part I
Glenn Sameshima DDS, PhD, Chairman and Program Director, Adv. Orthodontic Program, Herman Ostrow School of Dentistry, University of Southern California
Quick and Easy Lingual Treatment
Bonding Outside the Box
AAOF Report
PCSO Business
Component Reports
PCSO at a Glance
Case Report Pre-Treatment

Pacific Coast Society of Orthodontists Bulletin Summer 2013

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