Oral cavity comprehensive detecting method and apparatus based on flexible phase controlled ultrasonic array

Abstract

The invention discloses oral cavity comprehensive detecting method and apparatus based on a flexible phase controlled ultrasonic array. The apparatus comprises a display module, a phase controlled ultrasonic transmitting module and a phase controlled ultrasonic receiving module connected with a control module, respectively. The phase controlled ultrasonic transmitting module and the receiving module are further connected with a flexible phased array ultrasonic transducer array. The method comprises the following steps of: performing ultrasonic scanning to detect teeth facing outwards skin in periphery of the oral cavity on the face or in all directions of other soft tissues of the oral cavity through the flexible phased array ultrasonic transducer array; transmitting ultrasonic waves withset frequency to detection points through the phased array focused ultrasound when detecting the teeth so as to detect the amplitude of the reflected wave and detect whether defect waves exist in thereflected wave; and transmitting ultrasounds with different frequencies to the detection points through the phased array focused ultrasound and detecting the attenuation of the transmitted wave with different frequencies at the other end when detecting the soft tissues of the oral cavity so as to obtain broadband ultrasonic attenuation parameters. Therefore, health states of the soft tissues of oral cavity can be obtained rapidly.

Description

technical field [0001] The invention belongs to the technical field of ultrasonic oral cavity detection, and in particular relates to a comprehensive oral cavity detection method and device based on a flexible phased ultrasonic array. Background technique [0002] In recent years, with the improvement of people's living standards, people pay more and more attention to oral health, so it is very necessary to carry out oral inspection and health evaluation. The key to oral health evaluation is to detect whether there are caries, tooth decay, inflammation, swelling, hyperplasia, atrophy of the gums, and oral ulcers. [0003] As a detection method for dental caries and tooth decay, the doctor's naked eye observation and evaluation using X-rays have become the mainstream. However, the accuracy of the naked eye observation method is not high, nor can it provide accurate data to evaluate the condition of the subject's dentine. For inexperienced dentists, it is not conducive to th...

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Problems solved by technology

When using rigid probes to detect irregular surfaces such as the outside of the oral cavity, it is difficult to achieve complete contact detection, because for objects with irregular surfaces, rigid array probes can only be matched by acoustic wedges. For complex shapes like the face, it is inconvenient to use a rigid array probe to detect and will greatly affect the detection accuracy

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