UA21139U - Method for predicting caries intensity in teenagers depending on sex, anthropometric and somatotypologic parameters - Google Patents

Abstract

The method for predicting the caries intensity in the teenagers depending on sex, anthropometric and somatotypologic parameters comprises the assessment of the anthropometric and somatotypologic parameters followed by their discriminant analysis providing for the mathematical models for the individual assessment of the caries intensity.

Description

Description of the invention

The useful model belongs to medicine, namely to stomatology, it concerns mathematical modeling of the 2 probable intensity of the impression of teeth with caries based on the analysis of the peculiarities of the structure and body dimensions of adolescents of different sexes who live in Ukraine.

To date, there are no data on the possibility of predicting the risk of dental caries in boys and girls taking into account gender and anthropometric indicators.

The closest analogue of the proposed method is unknown. 70 As the basis of a useful model, "The method of predicting the intensity of dental caries in adolescents depending on the gender of anthropometric and somatotypological indicators", the task is to develop mathematical models for determining the risk of dental caries by studying anthropometric parameters in healthy boys and girls and conducting a direct step-by-step discriminant analysis.

The task is achieved by a method in which, according to a useful model, a complex of 19 anthropometric indicators is determined, a step-by-step discriminant analysis is carried out and mathematical models are created for determining the degree of risk of dental caries depending on the values of anthropometric and somatotypological indicators. (for girls with low KPV)-:OSTP»9.02- yavvTe2.7140ОК-7.27-ОпПНчг8.43-ТШЖеСГ-О, 83 тшШЖжеЗпППг0.334-ТШЖШСС-0.02-ТШЖХОЖ-3.22

UPNGR-2.46-TShZhSPPP20.62-360.5, ii (for girls with an average KPV)-:OSTP29.91- yavvTe2.68-OK-6.444OPNCH»9.14-TShZheSG-1.33-

TshShzhZheZpPP20,11-TshZhSS0,06-TshZhZhe3, 395 with

PNGR-2.47-TShZhSPPP20.36-376.8, (for girls with high KPV): OSTP»g8.97 vvte2.92-оК-6.62-ОопПнчг8.60-ТШЖШСГ-О, 36 tshШЖжheZpPPeg0.95- TSHZHSS-0.44-TSHZHOSZH-3.55 me)

PNGR-2.88-TShZhSPPP20.97-377.8. со (for young men with a low KPV)-ВК-6.95-ШДЕГ»23.74- -ПНГР»2.5140ЩШ25.634-0ОК-12.10-355.6, -- ой (for young men with an average KPV) -VK-7,10-- "-

USHDEG»24.90-PNGR-2.8440ЩШ25.79-4OK-12.39-371.9, s (for young men with high KPV)-VK-7, 7 7 -SHDEG»21.42- -PNGR»2 ,2240ШШ25,2040К-12,64-359,1. where 0 is the value of the classification indicator; "

KPV - caries intensity index;

VVT - height of the pivot point (cm); but with VC - age (years); OK - girth of the hand (cm); y» OPNU - forearm girth in the lower part (cm);

OSTP - foot girth (cm);

OSH - neck girth (cm);

PNGR - transverse inferothoracic size (cm); име) TSHZHOSG - the thickness of the skin-fatty fold on the lower leg (mm); - TSHZHOH - thickness of the skin-fatty fold on the abdomen (mm);

TSHzhZheZPP - the thickness of the skin-fatty fold on the back surface of the shoulder (mm); -th TSHZheSPPP - the thickness of the skin-fatty fold of the front surface of the shoulder (mm); сю 50 TSHzhЖОеС - the thickness of the skin-fatty fold on the thigh (mm);

SHDEH - the width of the distal epiphysis of the tibia (cm).

Me, The values of the classification index (SC), obtained with the help of the proposed equations for anthropometric and somatotypological studies, allow clearly and adequately to classify the studied girls and boys and into the category of persons with a low level of caries at the values of ОЙ, close to 3бО, 5, and 355, respectively, 6; to persons with an average level of caries - with ОЙ values close to 376.8 and 371.9, respectively; to persons with a high level of caries at Oi values close to 377.8 and 359.1, respectively.

Developed mathematical models based on step-by-step discriminant analysis allow predicting the risk of dental caries in urban adolescents using anthropometric methods available in practical medicine. 60 The main difference of the proposed method is taking into account the dependence found in a healthy contingent of adolescents without accompanying pathologies between the intensity of the carious process and anthropometric indicators and sex. This approach makes it possible to adequately predict and identify urban teenagers of different sexes with low and high levels of dental caries intensity, which significantly increases the diagnostic value of the proposed method, increases the possibility of developing and carrying out effective preventive measures, improves the quality of 65 treatment and early diagnosis of caries.

The method is carried out as follows. At the preliminary stage of determining the risk of dental caries in the form of determining the caries intensity indicator, the following was carried out: - Anthropometric study according to the method of V.V. Bunaka |Bunak V.V. Anthropometry. - M.: Uchmedgiz

People's Commissariat of the RSOFSR.- 1941.- 368s)|. The component composition of body weight was studied by the method.). MaieidKa IMaieoka ..

That jeevipud oi rpuzisa! ePisiepsu / Ateg. 9. Riuv. ApigoroY- 1921.- MoY.2, Mo3- R.25-38), and somatotyping was carried out according to the calculated modification of the method of V. Neayy and u). Sapeg ISagpeg U.Y., Neay V.N.

Zotayoiuripd - demeiortepi apa arriisaiopv.- Satbgdde Opimegeyu Rgezz, 1990.- 504 r.|.

The intensity of tooth decay with permanent bite was determined by the KPV index, where K is the number of teeth affected by caries and its complications; P - number of seals; B - the number of removed teeth. The caries incidence rate was estimated based on the caries intensity criteria of the WHO global dental data bank - Dental prevention in children |(|L.O. Khomenko, V.I. Shmatko,

O.I. Ostapkotain.-K.: ISDO, 1993.- 192p1

At the final stage, the method of direct step-by-step discriminant analysis was used to develop mathematical models for determining the risk of dental caries, which does not require the presence of a linear /5 relationship between variables and a normal distribution of residuals.

The use of the proposed approach provides an opportunity to conduct a direct prognostic assessment of the risk of dental caries depending on individual genetically determined indicators and adequately solve the problem of probabilistic prediction and diagnosis of diseases in the adolescent environment.

Example 1

In a young man C, 20 years old, during the analysis of anthropometric indicators, the following was established: the width of the distal epiphysis of the lower leg - 7.1 cm., the transverse inferothoracic size - 24 cm., the girth of the neck - 37 cm., the girth of the hand - 20.5 cm. Young man C should be assigned to which risk group for caries impression intensity?

For determination, we use the proposed method and calculate the value of Ог. g (for young men with a low level of KPV)-2076.95-- 7 1723.74-2472.51-37.75.63-20.5712.1-355.6-348.1 g (for young men with an average level KPV)-2077.1-- but 7.1724.9-2472.843775.79420.5712.39-371.9-346.96 g (for young men with a high level of KPV)-2077.7 7 7.1721, 42-2472,223775,220,5712,64-359,1-346,6 Gee! with Answer:

With the help of the above equations, it was established that the value of the classification indicator (ОХ) is equal to о young men with a low level of KVP- 348.1; for young men with an average level of CPV - 346.96; for young men with a high "-

ECPV - 346.6. That is, the value of the classification indicator allows to attribute the boy S. to the risk group of persons with a low level of KPV. Clinically, such a result is interpreted as the patient's disinclination to increase the intensity of caries, which was also confirmed in further clinical studies. with

Example 2

In the case of a 20-year-old girl K. with medium intensity of caries, the analysis of anthropometric indicators revealed: foot circumference - 24 cm, pivot point height - 91.5 cm, hand circumference - 20 cm, forearm circumference in the lower part - 15 cm, skin thickness - fat fold on the shin - Umm., thickness of the skin - fat fold on the back surface of the shoulder - 8.1 mm., thickness of the skin - fat fold on the thigh - 11 mm., seam c thickness of the skin - fat fold on the stomach - 9U,bmm., transverse lower-sternal size - 20 cm., thickness of the skin-fatty fold on the front surface of the shoulder - 6b, 5 mm. )" Using the proposed equations for girls, we get the following values:

OG (for girls with a low level of CPV)-2479.02- 91.572.7142077.27-1578.434970.83-8.170.33-

GI -1170.02-9.673.22-2072.46-6.570.62-360.5-400.4 og (for girls with an average level of KPV)-2479.91- - 91.572.68--2076.44-1579 ,14zh951,33-8,170,11- - -1170,06-9,673,394-2072,47-6,570,36-376,8-398,88

OG (for girls with a high level of CPV)-2478.97- about 91.572.922076.62-1578.6970.36-8.170.95--

Ge -1170.44-9.673.554-2072.88-6.570.97-377.8-399.05

Answer:

With the help of the above equations, it was established that the value of the classification indicator (OC) is equal to 400.42 for girls with a low level of KVP; for girls with an average level of KPV - 398.88; for high level girls

KPV - 399.05. That is, the value of the classification indicator makes it possible to assign the girl K to the risk group of persons with a high level of KPV.

Clinically, such a result is interpreted as the tendency of this patient to increase the intensity of caries to a high level, which was also confirmed in further clinical studies.

Claims (1)

The formula of the invention The method of predicting the intensity of dental caries in young people depending on gender, where anthropometric and somatotypological indicators, which is distinguished by the fact that they determine a complex of anthropometric and somatotypological indicators, conduct a step-by-step discriminant analysis and create mathematical models for determining the risk of dental caries in an individual using the following functions: (for girls with low CPV) - OSTP » 9, 02 i- VVT »« 2.71 4 OK» 7.27 - OPNUCH 8.43 - TSHZheSG e 0.83 - TSHZHOeZpPPp "0.33 - TSHZHSS » 0.02 - TSHZHOJH » 3.22 i- PGNR " 2, 46 - TSHZhSPPP » 0.62-360.5, op (for girls with an average KPVV) - OSTP 9.91 i- VV 2.68 - OK g 6.44 i- OPN - 9.14 i- TPIZHOG »e 1 .33 ШШЖеЗПП » 0.11 - ШШШСС » 0.06 - ШШШОШ : 3.39 and PNGR » 2.47 - ШШШСППП » 0.36-376.8, (for girls with high KPV) - OSTP » 8.97 - VVT a 2.92 4- OK 6.62 - OPNCHU g 8.60 - TSHZHOSG » 0.36 - TSHZHOZpPpP - 0.95 - TSHZHSS » 0.44 - TSHZHSZ » 3.55 i- PNHR " 2.88 - TSHZHSPPP » 0.97-377.8. oi (for young men with low KPV) - VC- 6.95 и- SHDEG "" 23.74 - PNGR "2.51 4 OSH " 5.63 и- OK " 12, 10-355.6, (for young men with an average KPV) - VC- 7.10 i- SHDEG » 24.90 -PNGR « 2.84 4 OSH » 5.79 - OK » 12.39 -371.9, (for young men with a high KPV) - VC » 7.77 - SHDEG »« 21.42 - PNGR «2.22 4 OSH «5.20 i OK » 12.64 -359.1. where 0 is the value of the classification indicator; KPV - caries intensity index (points); VVT - height of the pivot point (cm); VC - age (years); OK - hand girth (cm); OPNU - forearm girth in the lower part (cm); OSTP - foot girth (cm); OSH - neck girth (cm); PNGR - transverse lower thoracic size (cm); TSHZHOSG - the thickness of the skin-fatty fold on the lower leg (mm); ТШЖОЖ - the thickness of the skin-fatty fold on the abdomen (mm); TSHzhZheZPP - the thickness of the skin-fatty fold on the back surface of the shoulder (mm); TSHZheSPPP - the thickness of the skin-fatty fold of the front surface of the shoulder (mm); TSHzhZHOES - the thickness of the skin-fatty fold on the thigh (mm); Z SHDEH - the width of the distal epiphysis of the lower leg (cm). Official bulletin "Industrial Property". Book 1 "Inventions, useful models, topographies of integrated microcircuits", 2007, M 2, 15.02.2007. State Department of Intellectual Property of the Ministry of Education and "5 Sciences of Ukraine. In r so "- "- s " no s i" name) - - o 50 3e) p. 60 b5