The document explains the role of physics in dentistry, highlighting its application in x-ray imaging for diagnosing dental issues and the use of ultrasonic devices for cleaning teeth. It discusses the importance of laser technology in dental procedures and the need for understanding material properties for dental restorations. Additionally, it touches on biomechanics in prosthodontics and orthodontics to enhance treatment planning and oral health.

2. Physics is fundamental to
understanding how X-ray
machines work, which are
essential for diagnosing dental
issues such as cavities, impacted
teeth, and bone structure. Dentists
use X-ray physics to capture detailed
images safely and accurately.
X-ray imaging

3. Ultrasonic devices use high-frequency
sound waves for cleaning teeth and
removing dental plaque and calculus.
Physics principles related to wave
propagation and the generation of
mechanical vibrations are applied in
the design and operation of these
instruments. Since the term “sonic”
refers to sound waves in the region of
16 Hz up to 20 kHz.
Ultrasonic Devices

4. All lasers work by delivering energy in
the form of light. Dental lasers are used
for various procedures, including
cavity preparation, soft tissue surgery,
and teeth whitening. The physics of
laser technology, such as the interaction
of laser light with tissue and the concept
of laser tissue ablation, is vital in
achieving precise and minimally
invasive dental treatments.
Dental Lasers

5. Understanding the physics of materials is
essential in dentistry, especially for the
selection and manipulation of dental
materials like composites, ceramics, and
metals. Knowledge of material properties,
such as elasticity, hardness, and thermal
conductivity, is crucial for ensuring the
longevity and functionality of dental
restorations.
Dental Materials

6. Physics is applied in prosthodontics and
orthodontics to design and adjust braces
and prosthetic devices (e.g. dental implants,
veneers, dentures, crowns and bridges).
Additionally, biomechanics, a combination
of biology and physics, is employed to
understand how forces impact teeth and
oral structures, aiding in treatment planning
for improved dental health and aesthetics.
Prosthodontics and Orthodontics

7. Thanks