The expression and frequency of a morphological variant of maxillary anterior teeth known as the 'talon cusp' is reported in a sample of 142 Malay schoolchildren from Yogyakarta, Indonesia. The trait exhibits variable and unilateral expression in the maxillary right lateral incisors of three children, yielding a frequency of 2.1%. Trait expression was graded in nature with males exhibiting larger talon cusps (Type 1, full talon; and Type 2, large semitalon) than the affected female (Type 2, small semitalon). A comprehensive analysis of the Malay primary dentition was conducted to detect possible morphometric covariation with talon cusp. Individuals with talon cusp are not significantly different from unaffected individuals in buccolingual crown size or in primary molar crown morphology. However, two of three individuals with talon cusp possess maxillary and mandibular primary canine teeth with an unusual conical crown structure. While talon cusp has previously been reported to co-occur with supernumerary teeth, including mesiodens, this is the first report of an association with coneshaped primary canines. We address the infrequent expression of talon cusp in primary maxillary lateral incisor teeth, the presence of talon cusp in earlier and prehistoric populations, the analogous anthropological trait known as tuberculum dentale, and the treatment needs of patients with talon.
Introduction: Black cumin (Nigella sativa) oil is a natural antibacterial product containing thymoquinone. Thymoquinone is a powerful antibacterial substance towards gram-positive bacteria. The research objective was to compare the inhibitory effects of black cumin oil, Cresophene®, and Ca(OH) 2 towards the growth of Staphylococcus aureus. Methods: Experimental laboratory by taking Staphylococcus aureus from deciduous teeth pulp necrosis that has been isolated in Brain-Heart Infusion (BHI) medium. Inhibitory of black cumin oil, Cresophene®, and Ca(OH) 2 were measured by making three different 6 mm diameter wells contained each substances. Data then analyzed by two-way ANOVA using statistical analysis program. Results: Cresophene® had the largest inhibitory zone with the average zone was 32±0.05 mm and stable from the 1 st day until the 4 th day then decreased on the 5 th day and remain stable until the 7 th day. Ca(OH) 2 had average inhibitory zone of 15.9±0:10 mm and remain stable from the 1
Latar belakang. Faktor risiko karies adalah faktor yang berhubungan dengan kejadian karies pada individu dan populasi. Faktor risiko karies berbeda antar individu. Untuk menggambarkan interaksi antara faktor-faktor yang berhubungan dengan karies digunakan kariogram. Tujuan. Penelitian ini adalah untuk mendapatkan gambaran urutan faktor risiko karies dengan pendekatan kariogram pada pasien anak di klinik Kedokteran Gigi Anak RSGMP Prof. Soedomo. Metode. Subjek terdiri dari 26 anak dalam periode gigi-geligi bercampur. Dilakukan pemeriksaan tentang pengalaman karies, riwayat penyakit sistemik, frekuensi makan, skor plak, aktivitas Streptococcus mutans, volume sekresi saliva, pH saliva dan program fluoridasi. Hasil pemeriksaan dianalisis menggunakan program kariogram. Hasil. Penelitian menunjukkan bahwa rerata persentase faktor bakteri adalah 21,1%, faktor pola makan: 18,1%, faktor kerentanan gigi: 16,1% dan faktor lain-lain: 9,5%. Kesimpulan. Dapat disimpulkan bahwa urutan faktor risiko karies dengan pendekatan kariogram adalah bakteri, pola makan, kerentanan gigi dan faktor lain-lain. Background. Caries risk factor is factor related with caries incidence in individu and population. The caries risk factor is different between individu. For illustrating the interaction between caries related factors may be used cariogram. Aim. The aim of this research was to find out the sequence of caries risk factors from cariogram on children patients at the Clinic of Pediatric Dentistry Prof. Soedomo dental hospital. Method. Subjects were comprised 26 children in the periode of mixed dentition. Examinations were included: experience of caries, the history of systemic disease, daily meal frequency, plaque scoring, activity of Streptococcus mutans, the volume of saliva secretion, pH of saliva, and the participations of fluoridation program. The examination result were analyzed with programme cariogram. Result. The result showed that the mean of percentage bacteria factor was 21,1%, meal pattern factor: 18,1%, susceptible teeth factor: 16,1% and others factors 9,5%. Conclusion. It could be concluded that the sequence of caries risk factors from cariogram were bacteria, meal pattern, susceptible teeth and others factors.
75-0.86 (p<0.01). The contribution of chronologic age and dental maturation to predict tooth eruption (R
The purposes of this study were to determine the applicability of Moyers and Tanaka-Johnston prediction methods for Indonesian Javanese children, and to develop new regression equations for predicting the size of the canine-premolar segment based on the normative standard of mesio-distal crown diameters of the permanent teeth in Indonesian children. Two hundred and eighty five sets of dental casts of the permanent dentition were obtained from Indonesian Javanese children in Yogyakarta, Indonesia during 2000-2001. There were 143 males and 142 females aged 11.1 to 14.9 years. The mesio-distal crown diameters were measured with calipers to an accuracy of 0.05 mm. The statistical analyses were performed using computer software (SPSS 9.0 for Windows). This study confirmed that the use of Moyers and Tanaka-Johnston prediction methods for mixed dentition analysis among Indonesian Javanese children were unsuitable. Both methods underestimated the size of canine-premolar segments, with exception of the Tanaka-Johnston method in females. The combination of maxillary first molars and mandibular lateral incisors (͚ ʲ 6 2 ʲ͉ ʲ 2 6 ʲ) showed relatively higher correlation with the actual size of ͚ 3 4 5. The development of new linear regression equations with predictor ͚ ʲ 6 2 ʲ͉ ʲ 2 6 ʲ for predicting the size of the canine-premolar segment was based on the normative standard of mesio-distal crown diameters of permanent teeth in Indonesian Javanese children. The newly developed regression equations are more accurate than the regression equation that uses predictor ͚ ʲ 2 1 ʲ͉ ʲ 1 2 ʲ for mixed dentition analysis among Indonesian Javanese. One of the important considerations during the period of mixed dentition is the discrepancy between available space and required space for unerupted permanent canine, first and second premolars. For determining an accurate occlusal guidance or orthodontic treatment plan, some prediction methods for estimating the size of the unerupted canine-premolar segment have been established. Among these, the Moyers 4) and Tanaka-Johnston 5) methods are the most widely used, although other methods 6-9) , using radiography, are suggested to be more accurate 6-9). Moyers and Tanaka-Johnston methods are straight forward, providing a high degree of accuracy,
Background: Demineralisation and remineralisation is a natural process in tooth enamel. It is influenced by the content of calcium and phosphorus in saliva, which concentrations are affected by the consumption of food, including formula milk. Demineralisation and remineralisation determine the roughness and hardness of the enamel surface. Purpose: This study compared the effect of formula milk on the roughness and hardness of tooth enamel. Methods: Maxillary premolar extracted teeth were demineralised with 37% phosphoric acid for 90 seconds and then divided into four treatment groups. For four days, the teeth were immersed twice a day in cow formula for five and ten minutes (Group I and II) and soy formula for five and ten minutes (Group III and IV). Before and after the immersion in milk, the teeth were submerged in artificial saliva. The enamel surface roughness and hardness were measured three times using a surface roughness tester and a Vickers microhardness tester, before and after demineralisation and after immersion in milk. Data were analysed using Kruskal–Wallis and post hoc Mann–Whitney tests. Results: There was no significant difference (p=0.88) observed in the roughness reduction among the treatment groups. The highest increase in hardness was noted for the ten-minute cow formula milk group (93.27 ± 16.00). The increase of hardness was higher after immersion for ten minutes. A substantial difference (p=0.03) was seen in the increase of hardness between the treatment groups. Conclusion: Immersion in cow and soy formula milk for five and ten minutes does not reduce the enamel roughness, but it increases the enamel hardness.
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