With the development of the economy and the increase in the exchange of people’s daily material and cultural life, having a white and neat teeth has become one of the goals of the pursuit of image beauty, modern orthodontic technology can help people achieve this purpose. Today’s market economy medical institutions are huge and diverse, there are public, private, high-end, low-grade, orthodontists mixed, good and bad, the majority of candidates ready to receive orthodontic treatment is more confused about how to choose a doctor and how to determine a doctor to do good or bad.
The first thing is to clarify the logical relationship between the choice of doctor and orthodontic results. No matter what the problem is, the purpose of choosing a doctor is to get a good result. Choosing a doctor is the means, getting a good result is the goal. What is a good result, what is a bad result, it has been said that if an ordinary person to judge the orthodontic good or bad is like asking him to identify the level and value of a jewelry, so for the general public, he can only listen to others (people around, or various media) and choose a doctor.
So is there a standard for orthodontics? Before talking about the standard of orthodontics first introduce two professional concepts.
1, the concept of ideal normal fit.
2, the concept of individual normal fit.
To achieve the ideal normal fit, in addition to the doctor’s orthodontic technology also depends on the patient’s personal dental and jaw conditions, orthodontics can achieve the ideal normal fit is much lower than the probability of winning the lottery or almost impossible, so the standard of orthodontic treatment is individual normal fit. But the individual normal fit varies widely, and it is because of this difference that it varies greatly from doctor to doctor, and the same doctor will also have some differences in cases with different degrees of malformation, and in some cases the differences are quite large. If the ideal normal fit is given a score of 100, a high quality orthodontic result will have a higher score and a low quality orthodontic result will have a lower score. A high level doctor will have a higher percentage of high scores among his many patients, a low level doctor will have a higher percentage of low scores, and of course some results will be below 60. It is because almost no doctor can achieve a score of 100, so a doctor who can achieve a passing score or more will be very good, and in his heart he may really think he is doing a good job. Since there is so much variability, there are some indicators to judge, and the answer is yes.
Tier 1: Addressing the “hard to see”
The initial alignment of “straight” teeth, to meet the reasonable requirements of the applicant’s complaints.
(General orthodontist to do the results can meet this a basic requirement)
The second level: to achieve the basic “normal” teeth together
1, the teeth are upright on the base bone, the arch form left and right symmetry
2, the upper and lower front teeth overlap coverage within the normal range
3, the maxillary teeth are consistent with the midline and the facial midline
4, The posterior teeth should have cusp and fossa occlusion relationship
5.Extraction cases should close the extraction gap
(About 60% of the cases made by full-time orthodontists in professional hospitals can reach this level)
The third level: morphological perfection
1.Frontal view: the more ideal upper and lower front teeth overlap coverage relationship
2, ortholateral view: the two sides of the upper and middle incisors are completely symmetrical, the distal incisive angle of the upper and middle incisors to the distal gingival trend should meet with the proximal incisive angle of the lateral incisors to the proximal gingival trend, the distal incisive angle of the lateral incisors to the distal gingival trend should meet with the point angle formed by the proximal margin of the cuspid and the proximal margin of the cuspid, the cuspid should meet with the angle point of the adjacent teeth in the lateral view of the posterior teeth.
3, the joint surface view.
(1) the upper and lower dentition of the anterior incisal edge and the posterior buccal cusp cusp ridge connected to form a perfect parabola with complete symmetry.
(2) the marginal crest of the posterior teeth should be in the same plane.
(3) The central fossa of the maxillary posterior teeth should form a slightly curved straight line.
(4) the buccal cusps of the mandibular posterior teeth should be aligned with the central fossa of the maxillary posterior teeth.
(It may not be a problem for those doctors who have good hand skills and have a certain level of pursuit, but some doctors may never achieve it)
Fourth layer: aesthetics
1.Aesthetic line, the upper and lower lips can fall on the line consisting of the tip of the nose and the most anterior point of the chin (or within 2mm of the front and back)
2, front teeth torque: the front teeth torque is appropriate, the upper front teeth can not be tilted inward or “crawl outward”
3, the upper and lower front teeth in the same line, the upper cusp completely “located” between the mandibular cusp and the first bicuspid, forming a close contact relationship.
4, smile line: from the incisal edge of the maxillary anterior teeth, cusp, bicuspid buccal cusp, the first molar buccal cusp, and the second molar proximal buccal cusp line should be consistent with the lower lip lip edge when smiling (of course, if the smile line thus formed professionally looks more normal and beautiful, but the lower lip edge curvature can not do some training in smile)
5, Darkspace:. The space formed between the upper and lower lip corners and the first molar of the upper jaw when smiling, this space is a black area against the white teeth, called Darkspace. too small or no Darkspace gives the impression that the entire mouth is full of teeth, too many teeth; Darkspace is too large, the cheek fullness is not enough.
Level 5: Function
Orthocentric position and orthocentric relationship position are consistent, incisive guide and condylar guide are consistent, anterior extension is not interfered with, lateral coincidental cuspid protection or group tooth protection.