{"title":"[Where is the right angle?].","authors":"M Filipović, D Demirović, F Arifhodzić","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Cephalometric radiographs of 49 cases with normal occlusion in the period of permanent dentition (all cases were orthodontically untreated) to study the angle of mandibular incisors obtained by Tweed's and Kubein-Meesenburg's methods. It is known that in both methods the angle should be 90 degrees in cases with normal occlusion. The results obtained were statistically treated and compared. It was found that majority of cases showed value of the angles to be 90 degrees or very close to it obtained by both methods. This finding indicated that two planes were parallel in majority of cases investigated. A change of the Tweed's angle produced change of the Kubein-Meesenburg's angle in such a way that sum of these two angles was 180 degrees. Inclination of the lower incisors showed a considerable variability which indicated an individual sagittal position of these teeth.</p>","PeriodicalId":77497,"journal":{"name":"Bilten Udruzenja ortodonata Jugoslavije = Bulletin of Orthodontic Society of Yugoslavia","volume":"24 2","pages":"97-100"},"PeriodicalIF":0.0,"publicationDate":"1991-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12979786","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Intellectual development in cases with normal occlusion and malocclusions].","authors":"J Stevanac-Papić","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Purpose of this study is to evaluate psychical maturity of two orthodontic groups of examinees. Sample consists of 640 children: 320 are (E) orthognathous (160 girls and 160 boys) and 320 are (PS) dysgnathous (160 girls and 160 boys). They are classified according to their age (7-14 years) into 32 groups, 20 examinees each. The dysgnathous subjects have a specific malocclusion; early tooth loss or secondary crowding. The evaluation of psychical maturity is based on the general success in school and the results of the intelligence test of the \"Raven's Progressive Matrices\", both are expressed in points. The results are statistically treated and presented in tables and graphs. PS children, in the analyzed sample, develop psychically slower than E children. PS examinees have lower score (in points) of general success in school, as well as in results of the intelligence test. Although the difference in the arithmetic means obtained by the results of the intelligence test between E and PS subjects is statistically significant, (t = 6.76; P = 0.009), clinically it is not considered significant and it is not interpretable, (as when expressed in points it amounts to only two points).</p>","PeriodicalId":77497,"journal":{"name":"Bilten Udruzenja ortodonata Jugoslavije = Bulletin of Orthodontic Society of Yugoslavia","volume":"24 2","pages":"101-8"},"PeriodicalIF":0.0,"publicationDate":"1991-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12980557","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[The effect of sagittal position of temporomandibular joint on development of Class I, II and III].","authors":"L Tijanić, M Janosević","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The scope of this paper is to estimate the effect of T-TM distance and mandibular length on sagittal jaw relationship. Examination was done on profile X-rays of 100 out-patients of Dental Clinic in Nis, divided into groups of class I, II and III according to angle PgA/SpP. The following parameters were analysed: Frankfurter horizontal, length of the maxillary corpus, mandibular length and T-TM distance. The following combinations were found: 1. Sagittal jaw relation is determined by T-TM distance with similar value of maxillary corpus and mandibular length. The shortest T-TM distance is in class III and the longest in class II. II. Sagittal jaw relation depends exclusively on mandibular length. Shorter mandible with similar values of maxillary corpus and T-TM distance give class II, while longer mandible will produce class III. III. Emphasizing effect--longer mandible and shorter T-TM distance and shorter mandible make distal jaw formation more emphasized. IV. Compensating effect--short T-TM distance and shorter mandible give class I instead of expected class III, while longer mandible compensates long T-TM distance forming class I instead of class II skeletal relationship.</p>","PeriodicalId":77497,"journal":{"name":"Bilten Udruzenja ortodonata Jugoslavije = Bulletin of Orthodontic Society of Yugoslavia","volume":"24 1","pages":"21-8"},"PeriodicalIF":0.0,"publicationDate":"1991-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12981394","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Sequence in calcification and eruption of second premolars and molars--a longitudinal study].","authors":"L Tijanić","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Investigation was done with the purpose of establishing frequency of eruption and calcification of P2 and M2 and to perform a longitudinal analysis of certain types, observing the changes during growth, character of these changes and their durability. Analysis was done on 354 orthopantomographic radiographs of orthodontic patients from Nis, aged 7 to 12 years. Eruption phase was determined on the bases of vertical relation to M1 Development phase was determined with the help of a table with 11 developmental phases. Depending on tooth in predominance, patients were divided into three groups: P2M2, (P2M2) and M2P2. All three types of eruption and calcification were recorded. (P2M2) eruption is dominant in maxilla, while M2 has some advantage in mandible. In calcification of both jaws, type P2M2 is predominant in both sexes. In later age, eruption shows changes of type-in 31% to 39% of cases, but this percentage is lower in calcification-from 22% to 25%. Relation of P2 and M2 in eruption is not permanent and changes with growth: in maxilla, P2 has synchronous position in relation to M2 until 8 years of age, to gain advantage in later years; in mandible, P2 has lower position until 10 years of age, to start quicker growth in eleventh year so that in 42% of cases it erupts before M2. In development phase, P2 has advantage in both jaws. P2M2 type shows least changes with age. Other two types change into type P2M2 in 40% of cases. Once set sequence of eruption and calcification cannot be a reliable indicator of later growth since considerable changes were observed in most patients.</p>","PeriodicalId":77497,"journal":{"name":"Bilten Udruzenja ortodonata Jugoslavije = Bulletin of Orthodontic Society of Yugoslavia","volume":"24 2","pages":"89-96"},"PeriodicalIF":0.0,"publicationDate":"1991-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12979785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[A study of sagittal jaw relationships in patients with Klinefelter's syndrome].","authors":"I Sćepan, B Glisić, M Babić","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Lateral cephalometric radiographs were used to study sagittal jaw relationships in 22 cases with Klinefelter's syndrome. The following angles were measured: SNA, SNB and ANB. Depending on the size of SNA and SNB angles, all cases investigated were classified in the following groups: bimaxillary prognathism, bimaxillary orthognathism or retrognathism; maxillary prognathism combined with mandibular orthognathism; maxillary orthognathism combined with mandibular prognathism or retrognathism; maxillary retrognathism combined with mandibular prognathism, orthognathism, or retrognathism. The mean value of the ANB angle of the whole group was -0.20 degrees indicating the skeletal class III jaw relationship. Out of 22 cases investigated, 45.4% showed bimaxillary prognathism, and 27.3% had a combination of the maxillary orthognathism and mandibular prognathism. 27.3% of all cases investigated belonged to the remaining groups.</p>","PeriodicalId":77497,"journal":{"name":"Bilten Udruzenja ortodonata Jugoslavije = Bulletin of Orthodontic Society of Yugoslavia","volume":"24 2","pages":"85-8"},"PeriodicalIF":0.0,"publicationDate":"1991-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12980561","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[The gnathometric evaluation of the effect of bionator in the treatment of Class II Division 1 malocclusions].","authors":"C Cvitanic-Raickovic, D Rak","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Treatment of class II division 1 malocclusion has a very important place in orthodontics because of the high frequency of this group of anomalies, as well as its special effect upon the face. The functional jaw orthopedics is of a special importance with its wide choice of orthodontic devices of which the Balter's Bionator can be put apart. The objective of this study was to gnatometrically check the efficiency of Bionator in the treatment of class II/division 1 malocclusions. Ten patients of both sexes aged from 10 to 12 years were examined and diagnosed in accordance with the clinical criterion. The following are conclusions: After twelve month of treatment, class I sagittal occlusal relation was established in all the patients. The normal values of the sagittal incisal scale were established. Bionator has shown the largest influence upon the sagittal jaw relation, whereas the effects of the transversal dimension could be neglected. Because of its obvious positive effects, the Bionator I can be recommended as the best method in the treatment of class II/division 1 malocclusion.</p>","PeriodicalId":77497,"journal":{"name":"Bilten Udruzenja ortodonata Jugoslavije = Bulletin of Orthodontic Society of Yugoslavia","volume":"24 1","pages":"29-36"},"PeriodicalIF":0.0,"publicationDate":"1991-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12981395","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Findings of dentitions whose orthodontic treatment by removable appliances with and without extractions was ended about 23 years ago.","authors":"D Eismann","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Out of a total of 300 patients the data of which and the dental casts including a control cast after an interval of 3 years were completely available, 56 patients could be investigated after an interval of about 20 years. When obtaining the last impressions they were aged 38 1/2 years. All casts were estimated and evaluated according to the method of Eismann (1969). It gives prerequisites to different dentofacial anomalies to compare them with each other under reproducible conditions. 15 factors are used in the assessment of the morphology of the dentition. Each of the criteria is measured and the results are evaluated according to the table. Points are scored for each condition registered and the total number will signify the extent of the morphological abnormality. The reduction of the numerical value between the initial and final casts is a measure of the success of treatment, and the difference between the score for end-of-treatment and follow-up casts is a measure of the degree of stability. Thus the cases between the end of treatment and the first control casts showed a slight improvement of the results. Between the first and the last control casts two trends were observed. On one hand single dentitions showed a further improvement, on the other the amount of the dentofacial anomaly symptoms increased a little. There are no trends derivable that there are special reacting differences between the extraction therapy group compared to the patients without extractions. The individual mode of reactions seems to be the most important factor with respect to the morphological changes independent of type of treatment.</p>","PeriodicalId":77497,"journal":{"name":"Bilten Udruzenja ortodonata Jugoslavije = Bulletin of Orthodontic Society of Yugoslavia","volume":"24 1","pages":"7-12"},"PeriodicalIF":0.0,"publicationDate":"1991-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12980556","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[An analysis of cephalometric polygons in 21 sets of triplets].","authors":"Z Kosovcević, M Marković","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Lateral cephalometric radiographs of 21 sets of triplets (4 monozygotic, 12 dizygotic and 5 three zygotic) were used for this study. The following two polygons were analysed: SNA and NSAr Go Me. Superimposition of the cephalometric tracings was made on the S-N line with S as the registration point. Intra- and inter-set comparisons between monozygotic (MZ), dizygotic (DZ) and three zygotic (TZ) triplets were made. Members of MZ triplets demonstrated the greatest similarity in size and form of the polygons. The second greatest similarity was found between MZ members of the DZ triplets, while the third DZ member of all such triplets showed much higher difference compared with the MZ members. Finally, triplets of TZ sets demonstrated the greatest difference between each other. The results obtained from this study indicated that genetic factors played a dominant role in growth and development of the craniofacial complex. However, difference found between members of MZ triplets suggested an importance of environmental factors in these processes as well.</p>","PeriodicalId":77497,"journal":{"name":"Bilten Udruzenja ortodonata Jugoslavije = Bulletin of Orthodontic Society of Yugoslavia","volume":"24 2","pages":"79-84"},"PeriodicalIF":0.0,"publicationDate":"1991-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12980560","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[An analysis of craniofacial changes from deciduous to the first stage of mixed dentition].","authors":"V Gazi-Coklinca, R Brcić, A Milicić, M Slaj","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Analysis has been done, with intention to observe dynamic of craniofacial changes, from deciduous to the end of the first phase of the mixed dentition. In the longitudinal sample, consisted of 67 children both sexes, observed from 3.5 to 8.5 year of age, the determined measurements of craniofacial variables, and indexes of the skull and face, were examined. The figures were elaborated statistically. Results show the slow reduction of the brachiocephals, while the frequency of mesiocephalics increases, especially at girls, what measurement of indexes confirm. From the deciduous period to the beginning of the mixed dentition, slow growth of the number of euriprosops and reduction of mesioprosops was found, while during the deciduous dentition the situation was opposite. Analysis of each craniofacial dimension shows that the length and the width of cranium are reduced until the beginning of the mixed dentition and increased after that. The other variables show continued increase of dimensions, especially at last period. Correlations are significant and very significant, between the width of the skull and the upper width of the face (and less significant at lower width of the face, which is in a high degree correlated with the height, than between the length of cranium and the height of the face. It is confirmed by factor analysis. At the multivariate analysis, two or three varimax factors can be isolated, dependent on phases: factor of wideness, factor of length height, and factor of age.</p>","PeriodicalId":77497,"journal":{"name":"Bilten Udruzenja ortodonata Jugoslavije = Bulletin of Orthodontic Society of Yugoslavia","volume":"24 1","pages":"13-20"},"PeriodicalIF":0.0,"publicationDate":"1991-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12981393","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Treatment of severe malpositions and impactions of the upper frontal teeth by fixed orthodontic techniques].","authors":"M Stojković","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The upper frontal region is the site of various abnormalities of the teeth: in number, size, form and position. Crowding of the upper frontal teeth is one of the most common type of malocclusions. The purpose of this report is to describe and illustrate treatment of 3 cases with predominant abnormalities of the upper frontal teeth performed by fixed orthodontic techniques. The first case had Class II division 2 malocclusion associated with an impacted upper right central incisor, as well as transposition of the upper right lateral incisor and canine (non-extraction case). The second patient presented Class I malocclusion with severe crowding of the upper frontal teeth and an ectopic position of the upper right canine (extraction case). The third patient was with Class II division 2 malocclusion associated with a multiple impaction of the teeth. The following teeth were impacted: upper canines, upper left second premolar and lower second premolars (extraction case). The first case was treated by Straight Wire Arch combined with a headgear. The second patient was treated by Edgewise technique combined with a palatal arch. A combination of Edgewise technique and headgear was used in the treatment of the third case. The results obtained were functionally and aesthetically quite satisfactory.</p>","PeriodicalId":77497,"journal":{"name":"Bilten Udruzenja ortodonata Jugoslavije = Bulletin of Orthodontic Society of Yugoslavia","volume":"24 2","pages":"109-14"},"PeriodicalIF":0.0,"publicationDate":"1991-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12980558","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}