Research Article
Volume 19 Issue 1 - 2020
Regression Formula to Correlate the Relationship between Facial Measurements in the Selection of Anterior Teeth to Cephalometric Analysis of Soft and Hard Tissues of Nose-A Pilot Study
Arani Deepthi Sonia1 ,Kalamalla A Saran Babu2*, Mahammad Rasool3, Sateesh Babu S4, Tejavath Kommalu5 and Shanawaz Shaik6
1Assistant Professor, Department of Prosthodontics, Narayana Dental College and Hospital, Nellore, India
2Department of Prosthodontics, Care Dental Hospital, Nellore, India
3Assistant Professor, Department of Prosthodontics, CKS Theja Dental College and Hospital, Tirupati, India
4Assistant Professor, Department of Conservative Dentistry and Endodontics, Asan Memorial Dental college and Hospital, Chennai, India
5Assistant Professor, Department of Prosthodontics, Mamatha Dental College and Hospital, Khammam, Telangana, India
6Assistant Professor, Department of Oral and Maxillofacial Surgery, Narayana Dental College and Hospital, Nellore, India
*Corresponding Author: Kalamalla A Saran Babu, Department of Prosthodontics, Narayana Dental College and Hospital, Nellore, India.
Received: November 25, 2019; Published: December 23, 2019


Aims and Objectives: To evaluate the soft and hard tissue dimensions of nose and to determine the relation with size of anterior teeth; to derive a formula from the analysis of clinical and cephalometric parameters.

Materials and Methodology: Twenty full dentate subjects (10 males, 10 females) with age in between 18 - 25 yrs were selected. Bizygomatic width of all the subjects were measured clinically and based on sear’s formula/pounds concept, predicted width of upper central incisor (PWCI) and predicted width of all the upper anteriors (PTWU) were calculated. Similarly, actual widths of central incisor (AWCI) and total width of all upper anteriors (ATWU)were evaluated through study models by using digital vernier calipers. In the meanwhile, cephalometric parameters of nose such as Nasal depth (ND), N’ to SN, N to ANS, Nasal length (NL) Columella convexity (CC) were identified in the lateral cephalograms and the distance between them were measured and the values were tabulated to FIT in regression model and regression formula was obtained to calculate the actual width of upper central incisor and total width of all upper anteriors.

Results: The results of all measurements were subjected to statistical analysis (paired ‘t’ test) and the correlation is very high and significant. AWCI - All Nasal Parameters = ‘P’-value < 0.05 (0.00), ATWU-All Nasal Parameters = ‘P’-value < 0.05 (0.00) (except for NL). Similarly, values obtained through regression equation by using cephalometric parameters were found in similarity to other modalities of measurements.

Conclusion: In this study an attempt has been made, to evaluate the cephalometric nasal dimensions and their relation to the size of upper anterior teeth, statistically significant results were obtained and a regression formula was derived. Cephalometric Nasal parameters can also be used as a guide in the selection of upper anterior teeth.

Keywords: Regression Formula; Nasal Parameters; Bizygomatic Width


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Citation: Kalamalla A Saran Babu., et al. “Regression Formula to Correlate the Relationship between Facial Measurements in the Selection of Anterior Teeth to Cephalometric Analysis of Soft and Hard Tissues of Nose-A Pilot Study”. EC Dental Science 19.1 (2020): 01-09.

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