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Maria Orellana D.D.S., Ph.D.

Understanding Disparities in Access to Orthodontic Care

Maria Orellana D.D.S., Ph.D.

My research program focuses on identifying and characterizing issues of disparities in access to oral health care in minority children and adolescents. Specifically, it focuses on disparities in access to orthodontic care in Latino children and adolescents.

I am empirically applying a multilevel, multidimensional conceptual model to understand the access to, and treatment of, adolescent malocclusion (considering individual, family and community factors) in a sample of Latino and non-Hispanic White adolescents attending private and public high schools in urban and rural California areas with varying community characteristics.
I am also utilizing the Child Oral Health Impact Profile (COHIP) to assess the association between oral health-related quality of life (OHRQoL) and clinical measurements of malocclusion determined by the Index of Complexity, Outcome and Need (ICON). By scoring the child's version and parental version of the COHIP, we are assessing both child and parental perceptions of the child's OHRQoL. We are also examining acculturation levels by means of the short acculturation scale for Hispanics (SASH) and the short acculturation scale for Hispanic youth (SASHY). 

Selected publications:

Burk T, Orellana M. Assessment of graduate orthodontic programs in north america. J Dent Educ. 2013 Apr; 77(4):463-75.

Cubas YP, Hardy D, Dhillon DK, Orellana MF. Effectiveness of training dental students in two occlusal indices. J Dent Educ. 2012 Jun; 76(6):739-45.

Nguyen E, Boychuk D, Orellana M. Accuracy of cone-beam computed tomography in predicting the diameter of unerupted teeth. Am J Orthod Dentofacial Orthop. 2011 Aug; 140(2):e59-66.

Kwo F, Orellana M. The current state of predoctoral orthodontic education in the United States. J Dent Educ. 2011 Apr; 75(4):518-26.

Nguyen TT, Miller A, Orellana MF. Characterization of the porosity of human dental enamel and shear bond strength in vitro after variable etch times: initial findings using the BET method. Angle Orthod. 2011 Jul; 81(4):707-15.

Cooke M, Gerbert B, Gansky S, Miller A, Nelson G, Orellana M. Assessment of the validity of HLD (CalMod) in identifying orthodontic treatment need. Community Dent Oral Epidemiol. 2010 Feb; 38(1):50-7.

Orellana MF, Nelson AE, Carey JP, Heo G, Boychuk DG, Major PW. Surface analysis of etched molar enamel by gas adsorption. J Dent Res. 2008 Jun; 87(6):532-6.

Orellana MF, Lagravère MO, Boychuk DG, Major PW, Flores-Mir C. Prevalence of xerostomia in population-based samples: a systematic review. J Public Health Dent. 2006; 66(2):152-8.

Flores-Mir C, Mauricio FR, Orellana MF, Major PW. Association between growth stunting with dental development and skeletal maturation stage. Angle Orthod. 2005 Nov; 75(6):935-40.

Borke JL, Chen JR, Yu JC, Bollag RJ, Orellana MF, Isales CM. Negative transcriptional regulation of connexin 43 by Tbx2 in rat immature coronal sutures and ROS 17/2.8 cells in culture. Cleft Palate Craniofac J. 2003 May; 40(3):284-90.

Orellana MF, Smith AK, Waller JL, DeLeon E, Borke JL. Plasma membrane disruption in orthodontic tooth movement in rats. J Dent Res. 2002 Jan; 81(1):43-7.