Demineralization and caries are well documented and unwanted complications of orthodontic therapy. These are most commonly reported in relation to fixed appliance therapy. Five cases are presented of patients undergoing Twin Block appliance therapy with the appliances incorporating lower labial segment capping, illustrating a pattern of demineralization and caries of the incisal tips of the mandibular labial segment, influenced by the incisal capping and the frequent intake of carbonated soft drinks.
MitchellLDecalcification during orthodontic treatment with fixed appliances; an overview. Br J Orthod1992; 19(3): 199–205.
2.
GorelickL, GeigerAMGwinnettJ.Incidence of white spot formation after bonding and banding. Am J Orthod1982; 81: 83–98.
3.
SteffenJMThe effects of soft drinks on etched and sealed enamel. Angle Orthod1996; 66: 449–56.
4.
GedaliaI, Ionat-BendatD, Ben-MoshehS, ShapiraL., Tooth enamel softening with a cola type drink and re-hardening with hard cheese or stimulated saliva in situ. J Oral Rehab1991; 18: 501–6.
5.
GrenbyTH. In vitro experiments on effect of soft drinks on dental enamel. Oralprophylaxe1990; 12: 103–13.
6.
MajewskiRFDental caries in adolescents associated with caffeinated carbonated beverages. Pediat Dent2001; 23(3): 198–203.
7.
KinironsMJ, StewartCAdolescents’ knowledge of common foods and drinks and the importance of the pattern of consumption: a study undertaken in an area of high dental needs. Commun Dent Hlth1998; 15(3): 175–8.
8.
JonesC, WoodsK, WhittleG, WorthingtonH, TaylorGSugar, drinks, deprivation and dental caries in 14-year-old children in the north west of England in1995. Commun Dent Hlth1999; 16(2): 68–71.
9.
IsmailAI, BurtBA, EklundSAThe cariogenicity of soft drinks in the United States. J Am Dent Ass1984; 109: 241–5.
10.
EdgarWM, HighamSMRole of saliva in caries models. Adv Dent Res1995; 9(3): 235–8.
11.
DowdFJSaliva and dental caries. Dent Clin N Am1999; 43: 579–97.
12.
ChadwickSM, BanksPA, WrightJThe use of myofunctional appliances in the UK: a survey of British orthodontists. Dent Update1998: 25: 302–8.
13.
ClarkWJTwin Block technique. Am J Orthod Dentofac Orthop1988; 93: 1–18.
14.
CarmichaelGJ, BanksPAA modification to enable controlled progressive advancement of the Twin Block appliance. J Orthod1999; 26(1): 9–14.
15.
ParkinNA, McKeownHFSandlerPJ. Comparison of 2 Modifications of the Twin Block Appliance in Matched Class II Samples. Am J Orthod Dentofac Orthop2001; 119: 572–7.
AllworkJ.An audit into lower Twin Block design and fractures: 2004. Departmental audit (unpublished).
19.
O'Brien, WrightJ., ConboyF, Effectiveness of early orthodontic treatment with the Twin-block appliance: a multicenter, randomized, controlled trial. Part 1: dental and skeletal effects. Am J Orthod Dentofac Orthop2003; 124: 234–43.
