Weather vane | Another landmark technological breakthrough for dental microscopes

The science and technology in the dental field is advancing with each passing day. The application of digital technology in dental medicine has been discussed in the industry many years ago. However, it was difficult to accurately predict the rapid development of digital technology in recent years. Digital technology has been widely used in recent years, including Oral and maxillofacial surgery, oral restoration, orthodontics, dental pulp, oral implants and other oral disciplines. For example, in the preoperative design of oral and maxillofacial surgery, surgical navigation and virtual training systems, automated surgical robots, etc., the application of digital technology has improved the accuracy of surgical operations and at the same time reduced the risks of surgery. The application of CAD/CAM technology, 3D scanning and printing technology has broken the traditional diagnosis and treatment model to a certain extent. The development of digital technology can better provide accurate, comfortable, minimally invasive, efficient, and safe patient diagnosis and treatment services, and at the same time reduce the threshold for relying on doctors' technology.

Talking about the application of digital technology, there are two main points: First, how relevant digital dental technology, including big data, mobile medical artificial intelligence and other information technology, can better exert its scientific and technological power in the medical field at a higher level. The second is the overall application of digital integration, including digital platforms, equipment matrices, oral medical data integration and processing, and digital value-added service ecological construction, so that doctors can be more efficient and focus on patient medical services.

1. Application of microscopic technology in oral fine treatment

Root canal microscope is a special microscope designed for dental clinics. It provides magnification and illumination for the surgical operation area, so as to provide the doctor with a clear and magnified surgical field of vision. Make the root canal treatment operation more refined and perfect, thereby increasing the success rate of root canal treatment.

Microscopes can be used in the treatment of bent or blocked root canals in the Department of Endodontics, the treatment of MTA repairing the perforation of the pulp chamber floor, the technique of ultrasonic needle removal under the microscope, and the minimally invasive surgery of local periodontal beauty in the periodontal department. Restorative surgery that can preserve more patients' teeth and increase the height, thickness, and root shape of the gums.

Second, Dentafilm microscope assists oral fine treatment

There are many types of microscopes. The price of imported high-end microscopes is as high as hundreds of thousands, or even millions, and domestic microscopes are tens of thousands to hundreds of thousands. Why are there such differences? The following analysis from the perspective of technology and application:

Indispensable advantage of high-end microscope 1: stepless zoom technology

The market is mainly full of fixed zoom and stepless zoom. From the feedback of market users, the advantages of stepless zoom can be clearly understood. In addition to the advantages of easy operation, simple operation and high efficiency for doctors, the benefits of stepless zoom There are many more, such as doctor-patient communication and teaching. The effect of'pulling the lens' is more intuitive and shocking. The field of vision is not blocked and it is easy to find the area to be diagnosed quickly. The magnification can be adjusted arbitrarily, in the depth of field and the magnification and the size of the field of view. The unique advantage of stepless zoom is used to find the most suitable diagnosis and treatment scene.

Fixed zoom (generally 5 fixed gears)

Stepless zoom (adjustable at any magnification)

The stepless zoom system is a key component of the surgical microscope optical system. It undertakes the continuous zoom function of the surgical microscope system to achieve continuous and uninterrupted changes in the observation field, replacing the field of view jump caused by the stepping and zooming, and eliminating the doctor’s cause. Discomfort caused by a jump in the field of view. At the same time, the use of apochromatic technology allows the doctor to obtain clear images with little color distortion, and improves the safety during the operation.

Foreign surgical microscope manufacturers Zeiss, Leica high-end surgery and microscopes all use stepless zoom technology.

It adopts a four-element zoom form, which is composed of a front fixed group, a zoom group, a compensation group, and a rear fixed group. The zoom group and the compensation group move according to the cam curve to achieve 1:6 times continuous and uninterrupted zoom. The movement of the zoom group and the compensation group is synchronized through the cam.

Indispensable advantage of high-end microscope 2: 4K high-definition imaging system

With the demand for high-quality patient images in the dental medical industry, doctors pay more and more attention to the details of the images. The 1920*1080P built-in camera module commonly used in the microscopy market at present, in practical applications, is The details are poorly restored, and it is easy to produce blurred boundaries. In view of this, our company adopts dual 4K technology, 4K built-in camera module (4000*3000)  +   4K high-definition display, which can more truly restore the details of the observed target and increase the definition of the edge of the observed target. So as to help doctors obtain professional-level high-definition surgical videos and photos, so that doctors can communicate and academic exchanges between doctors and patients.

Dentafilm Microscope HD 4K Imaging System

Indispensable advantage of high-end microscope 3: Fluorescence detection technology

The wavelength of the excitation light source is 360-460nm, and the autofluorescence wavelength of the enamel is about 540-550nm and 610-620nm. The fluorescence intensity from the surface of the detected tooth is compared with the fluorescence intensity from the surface of the clean tooth. This method determines the content of dental plaque and realizes the detection of dental plaque. The demineralization area will cause the autofluorescence to weaken and appear as a dark area.

Fluorescence caries observation instrument uses the characteristics of the fluorescence imaging system for the diagnosis and auxiliary treatment of caries. By using the autofluorescence of dentin, it is possible to detect early caries that are often overlooked by X-ray examinations, and it is also helpful to detect the development stage of caries.

Dental caries is one of the most important oral diseases at present. It has the characteristics of high incidence and wide coverage, which affects the quality of life of the people. The pathogenic factors of dental caries include bacterial factors, food factors, dental factors and saliva factors. Early diagnosis and early prevention are the key to the treatment of dental caries. Traditional dental caries detection methods include inspection, exploration, X-ray film, etc. Traditional detection methods are highly subjective and cause great harm to teeth and even the body, which can no longer meet the requirements for the transformation of dental caries from "destructive treatment" to "early prevention".

Existing studies have pointed out that mature dental plaque under the excitation of 405 nm light source will produce red autofluorescence. The surface of teeth covered with dental plaque and calculus will also produce red autofluorescence. Active carious tissues can also produce red autofluorescence. Autofluorescence is the emission spectrum with a peak around 630 nm. The specific metabolites of bacteria, porphyrin substances, especially protoporphyrin, are recognized as the main contributors to red fluorescence.

Fluorescence spectra of tooth inorganic mineral tissue and dental plaque under 405 nm light-guided fluorescence

Note: a. Tooth inorganic mineral tissue; b. Dental plaque.

It can be seen from the experimental results that under the excitation of 405 nm light-guided fluorescence, the fluorescence peaks of healthy tooth enamel and dentin are around 480 nm, and the fluorescence distribution is shown in Figure 2a. It can be clearly seen from the figure that the fluorescence spectrum of dentin is more biased towards the red band than enamel. Therefore, the fluorescence of the inorganic hard tissues of the tooth is mainly distributed between 440 and 520 nm. The typical light-guided fluorescence spectra of tooth samples with different degrees of caries are shown in Figure 2b~d. The carious tissues all show two peaks: the first peak is between 460 and 500 nm, and its peak position is the same as the peak position of healthy tooth tissue, dentin, tooth enamel and hydroxyapatite, so this area is autologous The main contributor of fluorescence is the hard tissue of the tooth [9]; the second peak is between 600 and 700 nm, which is consistent with the position of the strongest peak of dental plaque, so it can be judged that this is mainly caused by dental plaque metabolites. produced. Normally, the fluorescence emission intensity has a linear relationship with the concentration of the fluorophore molecule, and the spectral curve also shows that the fluorescence intensity of this region increases with the degree of caries.

Under fluorescent conditions, excess resin material can be removed

Fluorescence detection, caries standing shadow can be seen, no caries indicator is needed

The necessary advantage of high-end microscope 4: 5S electromagnetic lock + super balance system

The definition of the international microscope technology weathervane is that high-end microscopes must be equipped with electromagnetic lock systems. Dental clinical diagnosis has strict requirements on the maneuverability of the microscope body. Not only must it be controlled freely, smoothly and effortlessly, the so-called "hovering where it refers"; It is also required that once the diagnosis and treatment position is locked, the body is stable and does not shake. With a slight touch, the body can quickly return to a static state within a few seconds, and the image of the diagnosis and treatment position cannot be out of view due to slight touch of the body, so that the operation can be performed. It's safer, the so-called "refers to which hover and decides which". Therefore, the perfect combination of electromagnetic lock system + super balance arm system can well solve the clinical demands of doctors.

Dentafilm 5S electromagnetic lock control system refers to the microscope operation smoothly (Smooth), stable (Stable), safe (Safe), reliable (Stanchly), strong (Strong), unique in the industry, and easy to control.

The 5s electromagnetic lock system cooperates with the adjustment system of the balance arm, which can realize the fingertip control and smooth shift with one hand.

It can also be easily and quickly positioned according to the required diagnosis and treatment position, which can be specified. After determining the location of the diagnosis and treatment, the electromagnetic lock system can lock the mechanical joints, the body is stable, the image is not easy to shake, and touching the body will not cause the body to shift, which is safer and more reliable in clinical diagnosis and treatment.