About the Program
Integrating Disciplines for the Advancement of Science
The DIPRESLAB laboratory performs research in Digital Dentistry, Dental Implants, and Prosthodontic Materials and Techniques. Here, dental students, residents from different dental specialties, Master and PhD students, and research faculty access a space where questions, innovation, and development integrate. The laboratory can also run validation protocols of new techniques, devices, and materials with industry support.
The director of the DIPRESLAB laboratory is Associate Professor Rafael Delgado-Ruiz, Department of Prosthodontics and Digital Technology.
Research
Different research methods and disciplines are integrated within the DIPRESLAB.
Surface and Topographic Analysis Research
- Evaluation of surface characteristics, including 2-dimensional and 3-dimensional analysis
- Roughness, surface porosity, transparent and semi-transparent film thickness evaluations
Thermography Research
- Evaluation of internal and surface temperature changes as well as thermal emission of different bodies, and analysis of thermal changes during chemical and physical reactions
CAD-CAM and 3D Printing Research
- Stereolithography resin printing, post-processing evaluations, optical scanning, comparison of STL files
Metrology Research
- Calibration of parts, measurement of the accuracy of objects fabricated with different manufacturing techniques. 2-dimensional and 3-dimensional evaluations.
Wear Testing
- Two and three body wear tests can be completed parameters as surfaces, speed, and load can be adjusted to the research requirements
Implant Research
- Implant mechanics, geometry, surfaces, implant mechanical evaluations, simulation of implant insertion, and simulation of implant prosthetics
Torque Analysis
- Digital evaluation of maximum and minimum rotational torques is possible
Publications
Volumetric Changes in Morse Taper Connections After Implant Placement in Dense Bone. In-Vitro Study. Romanos GE, Delgado-Ruiz RA, Nicolas-Silvente AI. Materials (Basel). 2020 May 16;13(10):2306. doi: 10.3390/ma13102306.
Under-Drilling versus Hybrid Osseodensification Technique: Differences in Implant Primary Stability and Bone Density of the Implant Bed Walls. Delgado-Ruiz R, Gold J, Somohano Marquez T, Romanos G. Materials (Basel). 2020 Jan 15;13(2):390. doi: 10.3390/ma13020390.
Deformation of the Internal Connection of Narrow Implants after Insertion in Dense Bone: An in Vitro Study. Delgado-Ruiz R, Silvente AN, Romanos G. Materials (Basel). 2019 Jun 6;12(11):1833. doi: 10.3390/ma12111833.
Systematic Review of the Long-Term Effects of Transgender Hormone Therapy on Bone Markers and Bone Mineral Density and Their Potential Effects in Implant Therapy. Delgado-Ruiz R, Swanson P, Romanos G. J Clin Med. 2019 Jun 1;8(6):784. doi: 10.3390/jcm8060784.
Potential Causes of Titanium Particle and Ion Release in Implant Dentistry: A Systematic Review.
Delgado-Ruiz R, Romanos G. Int J Mol Sci. 2018 Nov 13;19(11):3585. doi: 10.3390/ijms19113585.
Slow drilling speeds for single-drill implant bed preparation. Experimental in vitro study.
Delgado-Ruiz RA, Velasco Ortega E, Romanos GE, Gerhke S, Newen I, Calvo-Guirado JL.
Clin Oral Investig. 2018 Jan;22(1):349-359. doi: 10.1007/s00784-017-2119-x. Epub 2017 Apr 22.
Temperature and time variations during osteotomies performed with different piezosurgical devices: an in vitro study. Delgado-Ruiz RA, Sacks D, Palermo A, Calvo-Guirado JL, Perez-Albacete C, Romanos GE. Clin Oral Implants Res. 2016 Sep;27(9):1137-43. doi: 10.1111/clr.12709. Epub 2015 Oct 6.
About the Researchers
Dr. Rafael Delgado-Ruiz, Director of DIPRESLAB
Dr. Tanya Somohano Marquez, Director of the Postgraduate Program in Prosthodontics)
Dr. Patricia Swanson, Director of Predoctoral Prosthodontics
Dr. Mina Mahdian, Director of the Advanced Education Program in Oral and Maxillofacial Radiology
Aya Sabbah, PhD Candidate
Ilyasse Benezha, Research Volunteer
Shradha Duggal, DDS Candidate
Kristen Marie Giugliano, DDS Candidate
Hammaad Shah, DDS Candidate
Elena Kan, DDS Candidate
Dr. Lexi Lippe, Resident, Advanced Education Program in Prosthodontics
Dr. Michelle Llinas, Resident, Advanced Education Program in Prosthodontics
Dr. Robert Klink, Resident, Advanced Education Program in Prosthodontics
Equipment
Thermocouple system (AD systems)
3D Confocal Laser Scanning Microscope VK-500
Metrology Digital Microscope VHX-6000
Infrared thermographic camera (FLIR A-325sc)
Digital Torquimeter (IMADA DW-20)
SLA 3D Printer including IPA washing chamber and post-polimerization UV chamber (Formlabs)
Wear simulation custom device
Grip force gauge (AD systems)
Meta-analysis software
Mentorship and Available Opportunities
Mentorship is available to Stony Brook students and research faculty. Dr. Delgado-Ruiz and the DIPRESLAB team provide training:
- on the proper use of the research devices of the DIPRESLAB, measurement techniques, and calibration
- related to systematic reviews of the literature and meta-analysis studies
To be mentored within DIPRESLAB, students should write to Dr. Delago-Ruiz to express their interest and include a short CV as an attachment.
Mentee students will receive six hours of training before the beginning of any research activity.
At present, no more than three people (including the lab director) can be present simultaneously within the lab to allow for social distancing.
Funding
The laboratory is, in part, the result of investment efforts of Stony Brook University School of Dental Medicine, and from research funds from the laboratory director, Dr. Delgado-Ruiz. Furthermore, materials used for testing are provided through research proposals presented to sponsors. It is possible to complete agreements and MOU with industry sponsors.
Contact
For additional information on DIPRESLAB, contact Dr. Delago-Ruiz.
