228
3 Holographic Interferometry for Studying …
experimental–clinical research and justification of their usage for lowering the level
of the states of strain in the dentofacial area related to the tasks of the study.
The result of such research was the creation of a device for functional chewing load
simulation in the whole dentofacial area that gives the possibility to reproduce with
maximal accuracy the conditions of teeth load for studying with optical methods.
With the help of the developed holographic interferometry methods, the regularities of the states of strain were for the first time studied, which occur in the intact
dentoalveolar area under conditions, which maximally simulate the clinical conditions, and the device was developed for simulation of chewing load in real bridge
dentures. The methods of load estimation were developed, and the character of load
transfer in the whole dentofacial area was concretely defined while applying different
constructions of bridge dentures. Based on the conducted study, more specific information was obtained concerning indications for orthopedic treatment of bounded
edentulous spaces with different constructions of bridge dentures. The techniques of
optimization of the states of strain during the prosthetics of patients with bounded
edentulous spaces were developed.
Thus, a complex experimental–clinical study was conducted, as a result of which
the construction of a device was designed, which provides simulating of functional
muscle loads of the skull facial part, which are maximally approximate to the physiological ones that made possible using high-precision optical methods to study the
impact of real orthopedic constructions on the whole dentofacial area [109, 108].
Investigation of the states of strain in the dentofacial area using the optical holography methods (non-destructive methods) gave the possibility to obtain qualitative
and quantitative data of the objects and to reliably reproduce current changes under
real applied loads using different orthopedic constructions including bridge dentures
[110, 111, 114–116]. The results of experimental research have shown certain regularities of deformations occurring in intact dentofacial area under two types of load.
The conducted quantitative analysis of deformations allowed concluding that the
applied load is inadequate along the direction but has its ways of distribution. The
anatomic peculiarities of the jaws, the form of dentitions and contact points between
teeth support the dentofacial area in the state of strained balance. Under chewing
load, each tooth has it turn center [112, 113, 117–119]. (Patent No. 3336 of the
Republic of Belarus for the invention “Device for functional muscle load simulation
of the facial part of the skull” was obtained).
It is pleasant to mention that this joint groundwork was started years ago thanks
to competent, highly professional attitude, sensitivity to novelties of Professor S.A.
Naumovich, Doctor of medical sciences, Head of the Orthopedic Dentistry Department of the State Educational Establishment “Belarusian State Medical University.”
Today, it turned into a whole specialized scientific school with its well-equipped
modern basis and specialists that allows developing and introducing his ideas into
clinical practice (see monograph “Holographic methods of study in dentistry” edited
by S.A. Naumovich, (Minsk 2009) [120].
3 Holographic Interferometry for Studying …
experimental–clinical research and justification of their usage for lowering the level
of the states of strain in the dentofacial area related to the tasks of the study.
The result of such research was the creation of a device for functional chewing load
simulation in the whole dentofacial area that gives the possibility to reproduce with
maximal accuracy the conditions of teeth load for studying with optical methods.
With the help of the developed holographic interferometry methods, the regularities of the states of strain were for the first time studied, which occur in the intact
dentoalveolar area under conditions, which maximally simulate the clinical conditions, and the device was developed for simulation of chewing load in real bridge
dentures. The methods of load estimation were developed, and the character of load
transfer in the whole dentofacial area was concretely defined while applying different
constructions of bridge dentures. Based on the conducted study, more specific information was obtained concerning indications for orthopedic treatment of bounded
edentulous spaces with different constructions of bridge dentures. The techniques of
optimization of the states of strain during the prosthetics of patients with bounded
edentulous spaces were developed.
Thus, a complex experimental–clinical study was conducted, as a result of which
the construction of a device was designed, which provides simulating of functional
muscle loads of the skull facial part, which are maximally approximate to the physiological ones that made possible using high-precision optical methods to study the
impact of real orthopedic constructions on the whole dentofacial area [109, 108].
Investigation of the states of strain in the dentofacial area using the optical holography methods (non-destructive methods) gave the possibility to obtain qualitative
and quantitative data of the objects and to reliably reproduce current changes under
real applied loads using different orthopedic constructions including bridge dentures
[110, 111, 114–116]. The results of experimental research have shown certain regularities of deformations occurring in intact dentofacial area under two types of load.
The conducted quantitative analysis of deformations allowed concluding that the
applied load is inadequate along the direction but has its ways of distribution. The
anatomic peculiarities of the jaws, the form of dentitions and contact points between
teeth support the dentofacial area in the state of strained balance. Under chewing
load, each tooth has it turn center [112, 113, 117–119]. (Patent No. 3336 of the
Republic of Belarus for the invention “Device for functional muscle load simulation
of the facial part of the skull” was obtained).
It is pleasant to mention that this joint groundwork was started years ago thanks
to competent, highly professional attitude, sensitivity to novelties of Professor S.A.
Naumovich, Doctor of medical sciences, Head of the Orthopedic Dentistry Department of the State Educational Establishment “Belarusian State Medical University.”
Today, it turned into a whole specialized scientific school with its well-equipped
modern basis and specialists that allows developing and introducing his ideas into
clinical practice (see monograph “Holographic methods of study in dentistry” edited
by S.A. Naumovich, (Minsk 2009) [120].