Abstract
Background: Selection and arrangement of the maxillary anterior teeth has always been most important as well as challenging for the edentulous patients. It demands rehabilitation of the functions with the aesthetics as priority.
Objective: The aim of this study was to assess the relation between interalar widths and inter canine distance in aid for the replacement of artificial maxillary anterior teeth. This study also assessed the relation of inter alar distance and inter canine distance in different population such as Aryans and Mongoloids.
Materials and Methods: To study the relation between interalarwidth and inter canine distance, measurements were taken from 228 subjects. Inter alar width was recorded by digital vernier caliper while the patient made seated on dental chair in a relaxed posture. Inter canine width was measured in the cast with digital vernier caliper.
Result: out of 228 participants Gender distribution was 118 males and 110 females where 84 were Mongoloids and 144 were Aryans whose age ranged from 25 to 45 years. This result showed that the males have greater interalar width and inter canine width in compared to females (male: 32.64 ±4.3, female: 30.64± 3.55) and is statistically significant (p <0.05).The mean value of inter alar width and intercanine width was also determined. Mongoloids have wider nose and increased intercanine width than Aryan but not statistically significant. The Pearsons coefficient index “r” showed a large positive correlation between interalar distance and intercanine width and was statistically significant. (r=0.642, p<0.01)
Conclusion: The study concluded that inter alar width can be a very useful guideline for the selection and replacement of anterior teeth for edentulous patients in Mongoloid and Aryan population.
Keywords: Anterior teeth selection, Inter alar width, Inter canine distance, Maxillary anterior teeth.
References
- Ellakwa A, McNamara K, Sandhu J, James K, Arora A, Klineberg I, et al. Quantifying the selection of maxillary anterior teeth using intraoral and extraoral anatomical landmarks. J Contemp Dent Pract 2011;12:414-21.
- Debnath N, Gupta R, Meenakshi A, Kumar S, Hota S, Rawat P.Relationship of inter-condylar distance with inter-dental distance of maxillary arch and occlusal vertical dimension: A clinical anthropometric study. J ClinDiagn Res 2014;8(12): 39-43.
- McArthur DR. Determining approximate size of maxillary anterior artificial teeth when mandibular anterior teeth are present. Part I: Size relationship. J Prosthet Dent. 1985;53(2):216–218.
- Al Wazzan KA. The relationship between intercanthal dimensionand the widths of maxillary anterior teeth. J Prosthet Dent2001;86:608‑
- Scandrett FR, Kerber PE, Umrigar ZR. A clinical evaluation oftechniques to determine the combined width of the maxillaryanterior teeth and the maxillary central incisor. J Prosthet Dent 1982;48:15‑
- Miranda GA, D’Souza M. Evaluating the reliability of the interalarwidth and intercommissural width as guides in selection of artificialmaxillary anterior teeth: A clinical study. J Interdiscip Dentistry 2016;6:64-70.
- Baleegh S Choudhry Z, Malik S, Baleegh H. The relationship betweenwidths of upper anterior teeth and facial widths. Pak Oral Dent J2015;35: 742-45.
- Cesario VA, Latta GH. Relationship between the mesiodistal widthof the maxillary central incisor and interpupillary distance. J ProsthetDent 1984;52: 641-43
- Ellakwa A, McNamara K, Sandhu J, James K, et al Quantifying the selection of maxillaryanterior teeth using intraoral and extraoral anatomical landmarks. JContemp Dent Pract 2011;12: 414-21.
- Mavroskoufis F, Ritchie GM. Nasal width and incisive papilla asguides for the selection and arrangement of maxillary anterior teeth.J Prosthet Dent 1981;45:592‑
- Sinavarat P, Anunmana C, Hossain S. The relationship of maxillarycanines to the facial anatomical landmarks in a group of Thai people.J AdvProsthodont 2013;5: 369‑
- Keng SB. Nasal width dimensions and anterior teeth in prosthodontics.Ann Acad Med Singapore 1986;15:311‑
- Dharap AS, Tanuseputro H. A comparison of interalar width andintercanine distance in Malay males and females. Anthropol Anz1997;55:63‑
- Smith BJ. The value of the nose width as an esthetic guide inprosthodontics. J Prosthet Dent 1975;34:562‑
- Ahn HJ, Yang HS, Park HO. A study on the selection of the maxillaryanterior artificial teeth in Korean adults. J Korean AcadProsthodont2002;40:484‑92
- Johnson PF. Racial norms: Esthetic and prosthodontic implicationsJ Prosthet Dent 1992;67:502‑
- Bland JM, Altman DG. Statistical methods for assessingagreement between two methods of clinical measurement. Lancet1986;I:307-10.
- Sellen PN, Jagger DC, Harrison A. Methods used to select artificial anterior teeth for the edentulous patient: A historical overview. Int J Prosthodont 1999;12:51‑8
- Deogade SC, Mantri SS, Sumathi K, Rajoriya S. The relationshipbetween innercanthal dimension and interalar width to the intercaninewidth of maxillary anterior teeth in central Indian population.J Indian ProsthodontSoc 2015;15:91‑
- Ward DH. A study of dentists’ preferred maxillary anterior tooth width proportions: Comparing the recurring esthetic dental proportion to other mathematical and naturally occurring proportions. J EsthetRestor Dent 2007;19:324-14.
Corresponding Author
Dr Suvit Maskey
Principal Investigator, Department of Dentistry, Institute of Medicine, Kathmandu, Nepal