Two case reports illustrate the effective treatment of Class II division 2 malocclusion with modifications to the Twin Block appliance. This approach may reduce the total treatment time and reduce the need for extra-oral anchorage. In each of the cases presented treatment has been carried out on a non-extraction basis with full correction of the malocclusion.
ClarkW. J. (1982) The Twin Block traction technique, European Journal of Orthodontics, 4, 129–138.
2.
HoustonW. (1989) Incisor edge-centroid relationship and overbite depth, European Journal of Orthodontics, 11, 139–143.
3.
HoustonW. and TulleyJ. (1993) A Textbook of Orthodontics,Wright, Bristol.
4.
IllingH. M., MorrisD. O. and LeeR. T. (1998) A prospective evaluation of Bass, Bionator and Twin Block appliances. Part 1—the hard tissues, European Journal of Orthodontics, 20, 501–516.
5.
LundD. I. and SandlerP. J. (1998) The effects of Twin Blocks: a prospective controlled study, American Journal of Orthodontics and Dentofacial Orthopaedics, 113, 104–110.
6.
MillsC. M. and McCullochK. J. (1998) Treatment effects of the Twin Block appliance: a cephalometric study, American Journal of Orthodontics and Dentofacial Orthopaedics, 114, 15–21.
7.
MillsJ. R. E. (1973) The problem of overbite in Class II division 2 malocclusion, British Journal of Orthodontics, 1, 34–48.
8.
Selwyn-BarnetB. J. (1991) Rationale of treatment for Class II division 2 malocclusion, British Journal of Orthodontics, 18, 173–181.
9.
Selwyn-BarnetB. J. (1996) Class II division 2 malocclusion: a method of planning and treatment, British Journal of Orthodontics, 23, 29–36.
10.
TothL. R. and McNamaraJ. A. (1999) Treatment effects by the Twin-block appliance and the FR-2 appliance of Frankel compared with an untreated Class II sample, American Journal of Orthodontics and Dentofacial Orthopaedics, 116, 597–609.
11.
TrenmouthM. J. (2000) Cephalometric evaluation of the Twin-block appliance in the treatment of Class II division 1 malocclusion with matched normative growth data, American Journal of Orthodontics and Dentofacial Orthopaedics, 117, 54–59.
