1. Department of Oral and Maxillofacial Radiology, University of Connecticut, School of Dental Medicine, Farmington, CT, USA.
2. Section of Periodontology, University of Connecticut, School of Dental Medicine, Farmington, CT, USA.
3. Department of Prosthodontics, University of Connecticut, School of Dental Medicine, Farmington, CT, USA.
4. Department of Pediatric Dentistry, University of Connecticut, School of Dental Medicine, Farmington, CT, USA.
5. Division of Periodontology, University of Dammam, College of Dentistry, Dammam, Saudi Arabia.