The Precision Measurment unit at the Faculty of Dentistry, Ain Shams University is a specialized facility focused on high-precision dental laboratory services, material testing, and oral cancer detection.
Operational Mission
Beyond patient care, the unit supports the academic community by:
● Assisting faculty members and postgraduate students with scientific research and data collection.
● Hosting training courses on how to operate precision measuring devices.
● Issuing certified documentation for measurements and microscopic diagnosis results.
Specialized Services
The unit provides a range of technical and diagnostic services for both clinical and research purposes:
● Material Testing: It offers precise measurement of materials used in or resulting from dental research for a pre-determined fee.
● The Unit offers a wide range of tests to evaluate the various properties of materials, such as:
● Ultimate compressive Strength.
● Ultimate Tensile Strength.
● Shear bond strength.
● Push out bond strength.
● Diametral compressive test for tension.
● Flexural Strength test.
● Fracture Toughness.
● Surface roughness.
● Thermal aging.
● Mechanical aging.
● Evaluation of induced strain within material as:
● Composite resin during polymerization.
● Dentures, Implants, Crowns & Bridges under loading.
● Tumor Diagnostics: Specializes in histological examination of samples and identifies tumor markers within the field of oral pathology to support early diagnosis.
● Radiographic Imaging: Provides dental diagnostic imaging and issues official diagnostic reports.
● New Technology Assessment: Evaluates imported and local dental materials for companies and suppliers.
Unit Objectives
● Enhance the quality and accuracy of scientific research related to dental materials.
● Provide testing and evaluation services for materials and instruments entering the Egyptian market in accordance with international standards (ISO).
● Support postgraduate students and faculty members with the latest technologies for analyzing material properties.
● Strengthen collaboration with local and international companies to develop medical products in the field of dentistry.
Laboratory Equipment
The unit is equipped with advanced technology to ensure accurate measurement results:
● Mechanical Properties Testing Device: For assessing the general strength and durability of dental materials.
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Instron Universal testing machine > Universal Testing Machine: A device used to measure general mechanical properties, capable of evaluating various parameters such as tensile strength, compressive strength, shear strength, and transverse strength.
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Strain meter Kyowa. Japan > Capable of measuring the magnitude and distribution of stresses and strains in different materials with various shapes. |
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Surface roughness tester > |
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Chewing simulator (Mechatronics) > Chewing Simulator: A device used to simulate masticatory forces by subjecting samples to conditions similar to those experienced in the oral environment. It can replicate the stresses materials would undergo over a period of up to five years, allowing the evaluation of their lifespan within a timeframe of approximately seven days. |
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Isomet diamond saw > Precision Micro Cutting Saw: A device used for cutting solid samples into ultra-fine sections at the micrometer scale, enabling precise sample preparation for accurate measurements. |
● Thermal Stress Device: Used to test material behavior under varying temperatures.
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Incubator > Incubator: A device used to maintain samples at a constant temperature prior to testing. |
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Thermocycler > A thermal cycling simulator for replicating long-term intraoral temperature fluctuations.
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● pH Measurement Device: Specifically for measuring acidity and alkalinity in dental samples
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Chewing simulator (Mechatronics) A chewing force simulation device used to subject samples to conditions similar to those experienced in the mouth, allowing simulation of the forces materials are exposed to over a period of up to five years, in order to test their expected service life in the oral cavity within a duration ranging from seven days.
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● Imaging Device.
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Stereomicroscope |
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