Abstract
Objective
The aim of this study was to illustrate the circumferential comfortable retainer (CCR) as a removable maxillary retainer with good potential patient compliance and to evaluate the discomfort of the retainers including distorted speech, gagging sensation and appliance discomfort.
Methods
Sixty-six orthodontic patients (male, 23; female, 43; mean age, 23.42 ± 10.19 years) who received orthodontic treatment with fixed orthodontic appliances were randomly assigned to two groups after debonding, a conventional wraparound retainer (CWR) group that fully covers the palate with an acrylic plate and a highly polished surface, and a circumferential comfortable retainer (CCR) group which has a horseshoe shaped base plate with three folds on the anterior region. A questionnaire that had a visual analog scale (VAS) which consists of a 100-mm horizontal line with 2 end-points labeled "no discomfort" on the left and "worst discomfort" on the right, with regard to distorted speech, gagging sensation and discomfort, was administered to patients after 4 weeks of retainer wear. The Mann-Whitney test was used to test the hypothesis that there was no difference between the two retainers.
References
1. Sheridan JJ. The three keys of retention. J Clin Orthod. 1991. 25:717–724.
2. Hwang CJ. Analysis of characteristics of medical accidents and disputes in orthodontic area. Korean J Orthod. 1999. 29:1–22.
3. Egolf RJ, BeGole EA, Upshaw HS. Factors associated with orthodontic patient compliance with intraoral elastic and headgear wear. Am J Orthod Dentofacial Orthop. 1990. 97:336–348.
5. Bartsch A, Witt E, Sahm G, Schneider S. Correlates of objective patient compliance with removable appliance wear. Am J Orthod Dentofacial Orthop. 1993. 104:378–386.
6. Brattström V, Ingelsson M, Aberg E. Treatment co-operation in orthodontic patients. Br J Orthod. 1991. 18:37–42.
7. Stratton CS, Burkland GA. The effect of maxillary retainers on the clarity of speech. J Clin Orthod. 1993. 27:338–340.
8. Moyers RE. Moyers RE, editor. Development of dentition and occlusion. Handbook of orthodontics for the student and general practitioner. 1973. 3rd ed. Chicago, Ill: Year Book Medical Publishers;175–192.
9. Bishara SE. Oral lesions caused by an orthodontic retainer: a case report. Am J Orthod Dentofacial Orthop. 1995. 108:115–117.
10. Seymour RA, Simpson JM, Charlton JE, Phillips ME. An evaluation of length and end-phrase of visual analogue scales in dental pain. Pain. 1985. 21:177–185.
11. Giannopoulou C, Dudic A, Kiliaridis S. Pain discomfort and crevicular fluid changes induced by orthodontic elastic separators in children. J Pain. 2006. 7:367–376.
12. Kluemper GT, Hiser DG, Rayens MK, Jay MJ. Efficacy of a wax containing benzocaine in the relief of oral mucosal pain caused by orthodontic appliances. Am J Orthod Dentofacial Orthop. 2002. 122:359–365.
13. Bird SE, Williams K, Kula K. Preoperative acetaminophen vs ibuprofen for control of pain after orthodontic separator placement. Am J Orthod Dentofacial Orthop. 2007. 132:504–510.
14. Joondeph DR. Graber TM, Vanarsdall RL, Vig KWL, editors. Retention and relapse. Orthodontics: current principles and techniques. 2005. 4th ed. St. Louis, Mo: Elsevier Mosby;1123–1151.
15. Mills JR. A long-term assessment of the mechanical retroclination of lower incisors. Angle Orthod. 1967. 37:165–174.
16. Moss JP. The soft tissue environment of teeth and jaws. An experimental and clinical study: part 1. Br J Orthod. 1980. 7:127–137.
17. Moss JP. The soft tissue environment of teeth and jaws. Experimental malocclusion: Parts 2 and 3. Br J Orthod. 1980. 7:205–216.
18. Reitan K. Clinical and histologic observations on tooth movement during and after orthodontic treatment. Am J Orthod. 1967. 53:721–745.
19. Gottlieb EL, Nelson AH, Vogels DS 3rd. 1996 JCO study of vorthodontic diagnosis and treatment procedures, Part 1. Results and trends. J Clin Orthod. 1996. 30:615–629.
21. Erb DP. Speech effects of the maxillary retainer. Angle Orthod. 1967. 37:298–303.
22. Laine T. Articulatory disorders in speech as related to size of the alveolar arches. Eur J Orthod. 1986. 8:192–197.
23. Oliver RG, Evans SP. Tongue size, oral cavity size and speech. Angle Orthod. 1986. 56:234–243.
24. Haydar B, Karabulut G, Ozkan S, Aksoy AU, Ciğer S. Effects of retainers on the articulation of speech. Am J Orthod Dentofacial Orthop. 1996. 110:535–540.
25. Reinicke C, Obijou N, Tränkmann J. The palatal shape of upper removable appliances. Influence on the tongue position in swallowing. J Orofac Orthop. 1998. 59:202–207.