Dental Journal of Advance Studies

Navreet Sandhu ¹, Sarabjeet Singh Sandhu ², Kavita Mehta ², Rita Kashyap ²

Affiliations
1 Department of Prosthodontics, Bhojia Dental College and Hospital, Distt. Solan, Himachal Pradesh, IN
2 Department of Orthodontics and Dentofacial Orthopedics, Bhojia Dental College and Hospital, Distt. Solan, Himachal Pradesh, IN

Abstract

Introduction: Ever since the time of Edward H. Angle, the effects of upper airway obstruction have been recognized in the field of craniofacial biology. Because of the close relationship between the pharynx and the dentofacial structures, a mutual interaction is expected to occur between the pharyngeal structures and the dentofacial pattern, and therefore justifies orthodontic interest. The purpose of this study was to compare the upper and lower pharyngeal widths and nasopharyngeal area in class I and class II malocclusion patients. Methods: The study sample consisted of 48 subjects of age group 18-26 years, divided into 2 groups : class I(n=24) and class II (n=24). Pharyngeal airways were assessed according to Mc Namara's analysis and Handelman and Osborne method of measuring pharyngeal widths and nasopharyngeal areas. Results: Independent t-test showed a statistically significant difference (p<0.01) in upper aerial width and nasopharyngeal airway area between two groups, showing that in class II cases upper aerial width is narrower and nasopharyngeal area is small when compared to class I cases. Conclusion: Conclusion of the study was that upper aerial width and nasopharyngeal airway area of class II cases were smaller than Class I cases. It was observed that mandibular position with respect to cranial base had an effect on pharyngeal airway.

Keywords

Malocclusion, Orthodontics, Nasopharynx.

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Amit Sharma ¹, Jagmohan Lal ¹, Navreet Sandhu ², Abhimanyu Singh Chauhan ¹, Ravneet Kaur ¹

Affiliations
1 Department of Prosthodontics, Bhojia Dental College and Hospital, HP, IN
2 Department of Prosthodontics, National Dental College, Dera Bassi, Punjab, IN

Abstract

Traditional materials utilized for dental applications have been selected based on their mechanical properties and ability to remain inert in vivo; this selection process has provided materials that satifisfy physiological loading conditions but do not duplicate the mechanical, chemical, and architectural properties of bone. The less than optimal surface properties of conventional materials have resulted in clinical complications that necessitate surgical removal of many such failed bone implants due to insufficient bonding to juxtaposed bone. Due to unique surface and mechanical properties, as well as the ability to simulate the three-dimensional architecture of physiological bone, one possible consideration for the next generation of orthopedic and dental implants with improved efficacy are nanophase materials.

Keywords

Nanophase, Bioceramics, Cytocompatibility.

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