Tadashi Ozaki
Biographic Data
| ID | 5207608 |
|---|---|
| NAME | Tadashi Ozaki |
| GIVEN NAMES | Tadashi |
| FAMILY NAME | Ozaki |
| SIGNATURE | OZAKI T |
| AFFILIATIONS | Nihon University |
| VERIFIED | No |
| TOTAL WORKS | 10 |
| TOTAL CITATIONS | 4 |
| WORKS AS AUTHOR | 10 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 1960 |
| LATEST PUBLICATION YEAR | 1993 |
| H-INDEX | 1 |
Ages at peak velocity and peak velocities for seven body dimensions in Japanese children
Seven body dimensions of 37 Japanese children, 16 boys and 21 girls, were measured longitudinally at 6-monthly intervals from 9 through 15 years of age. Spline curves were fitted to the longitudinal data of each dimension to obtain age at peak velocity and magnitude of peak velocity for each child. Ages at peak velocity for each dimension occurred, on average, later in boys than in girls. Mean peak velocities were also larger in boys except for c…
Frequencies of Occurrence of Accessory Tubercles and Other Traits in the Lower Deciduous Second Molar
The frequencies of occurrence of anomalous traits or tubercles on the lower second deciduous molar were investigated with the use of moire contourgraphy. A molar with negligible attrition was fixed in the tricuspal position where the position of the protoconid, metaconid and hypoconid were in a horizontal plane. A moire photograph in the pitch of 0.2 mm was thus obtained and examined. The frequency of occurrence of a tubercle was counted in three…
Skin and subcutaneous adipose tissue weights in older Japanese determined by cadaver dissection
Forty-six embalmed cadavers of elderly Japanese 48 to 95 years of age, 35 males and 10 females, were completely dissected, and the weights of skin and subcutaneous adipose tissue were determined. Absolute and relative skin weight in males (2.68 kg, 5.7%) were similar to those in females (2.73 kg, 6.1%). However, females had more dissectible subcutaneous adipose tissue (5.82 kg, 12.3%) than males (3.18 kg, 6.3%). These figures are comparable to di…
Cuspal ridges of deciduous upper second molars in Japanese subjects
The occlusal surfaces of deciduous upper second molars were photographed by moire contourography using the standard trigonal plane. The ridges of a cusp, omprising a central ridge and the mesial and distal accessory ridges, were identified by the patterns of the moire fringes. The central ridge was present on all cusps except for the hypocone in both sexes. Frequencies of the two accessory ridges on trigonal cusps exceeded 60% except for the dist…
A quantitative investigation of irregular cuspules in human maxillary permanent molars
The frequency of occurrence of anomalous cusps or tubercles on human upper first molars was investigated in seven racial populations using moiré contourography, which permits the three‐dimensional measurement of minute cusps. Tubercles on the mesial marginal ridge were more frequently found in Mongoloid populations (Japanese and Eskimo) than in others. The frequency of the protoconule was high in Eskimos and Negroids (Bantu and San). The lingual …
Variation in Sequences of Age a t Peak Height Velocity and Age at Peak Weight Velocity
As for the adolescent growth of height and weight from the cross sectional growth studies, age at peak height velocity (APHV) generally comes earlier than age at peak weight velocity (APWV) in both sexes. The longitudinal data on the individual growth was examined on 16 boys and 21 girls. Peak velocities and ages at peak velocity were calculated by differentiating spline functions by which the growth curves were approximated. APHV and APWV were c…
Three-dimensional measurement of the occlusal surface the upper first molar in South African samples
Three-dimensional measurement of the occlusal table of the upper first maxillary molar in three racial populations in South Africa was carried out with the use of moire contourography. Three populations were San Bushman, Central Sotho Bantu (Negroid) and Asiatic Indian (Caucasian). Their dental casts had been collected in 1968-1969 in Botswana and Lenasia by Nuffield Foundation and are now housed in Arizona State University. A moire photograph of…
Allometric Variation on Cuspal Areas of the Lower First Molar in Three Racial Populations
Cusp areas of the mandibular first molar were measured in five groups of three racial populations: Japanese male and female, Dutch, and Australian Aboriginals male and female. Total values of five cusp areas were the largest in Aboriginals, 114.9mm2, and the smallest in Dutch, 96.1 mm2. Percent cusp areas (% of total area) do not show population differences. However, there was a tendency that the proportion of these five areas in Aboriginals appr…
Occlusal Surface Index of the Molars in Indians
A total of 164 teeth in Indians, comprising 86 upper molars and 78 lower molars have been examined, and the occlusal surface indices have been calculated in order to compare the results of the previous studies. Our findings are as follows. The occlusal surface indices of the molars in Indians show a tendency of decreasing their values toward the posterior, that is, with the largest values on M1 and the smallest on M3. A statistically very signifi…
The Possibility of Identification on the Human IsolatedTeeth
It is important for anatomists as well as for anthropologists to identify humanisolated teeth as to where it was located in the jaws that is to say to diagnose the kind of teeth. However, the limit of the possibility in morphological identification has been neither discussed nor examined whatever. The authors of the present paper performed an experiment on this problem in order to clear up how far it goes and whether there is any differences in e…
A quantitative investigation of irregular cuspules in human maxillary permanent molars
The frequency of occurrence of anomalous cusps or tubercles on human upper first molars was investigated in seven racial populations using moiré contourography, which permits the three‐dimensional measurement of minute cusps. Tubercles on the mesial marginal ridge were more frequently found in Mongoloid populations (Japanese and Eskimo) than in others. The frequency of the protoconule was high in Eskimos and Negroids (Bantu and San). The lingual …
The Possibility of Identification on the Human IsolatedTeeth
It is important for anatomists as well as for anthropologists to identify humanisolated teeth as to where it was located in the jaws that is to say to diagnose the kind of teeth. However, the limit of the possibility in morphological identification has been neither discussed nor examined whatever. The authors of the present paper performed an experiment on this problem in order to clear up how far it goes and whether there is any differences in e…
Occlusal Surface Index of the Molars in Indians
A total of 164 teeth in Indians, comprising 86 upper molars and 78 lower molars have been examined, and the occlusal surface indices have been calculated in order to compare the results of the previous studies. Our findings are as follows. The occlusal surface indices of the molars in Indians show a tendency of decreasing their values toward the posterior, that is, with the largest values on M1 and the smallest on M3. A statistically very signifi…
Allometric Variation on Cuspal Areas of the Lower First Molar in Three Racial Populations
Cusp areas of the mandibular first molar were measured in five groups of three racial populations: Japanese male and female, Dutch, and Australian Aboriginals male and female. Total values of five cusp areas were the largest in Aboriginals, 114.9mm2, and the smallest in Dutch, 96.1 mm2. Percent cusp areas (% of total area) do not show population differences. However, there was a tendency that the proportion of these five areas in Aboriginals appr…
Three-dimensional measurement of the occlusal surface the upper first molar in South African samples
Three-dimensional measurement of the occlusal table of the upper first maxillary molar in three racial populations in South Africa was carried out with the use of moire contourography. Three populations were San Bushman, Central Sotho Bantu (Negroid) and Asiatic Indian (Caucasian). Their dental casts had been collected in 1968-1969 in Botswana and Lenasia by Nuffield Foundation and are now housed in Arizona State University. A moire photograph of…
Variation in Sequences of Age a t Peak Height Velocity and Age at Peak Weight Velocity
As for the adolescent growth of height and weight from the cross sectional growth studies, age at peak height velocity (APHV) generally comes earlier than age at peak weight velocity (APWV) in both sexes. The longitudinal data on the individual growth was examined on 16 boys and 21 girls. Peak velocities and ages at peak velocity were calculated by differentiating spline functions by which the growth curves were approximated. APHV and APWV were c…
Cuspal ridges of deciduous upper second molars in Japanese subjects
The occlusal surfaces of deciduous upper second molars were photographed by moire contourography using the standard trigonal plane. The ridges of a cusp, omprising a central ridge and the mesial and distal accessory ridges, were identified by the patterns of the moire fringes. The central ridge was present on all cusps except for the hypocone in both sexes. Frequencies of the two accessory ridges on trigonal cusps exceeded 60% except for the dist…
A quantitative investigation of irregular cuspules in human maxillary permanent molars
The frequency of occurrence of anomalous cusps or tubercles on human upper first molars was investigated in seven racial populations using moiré contourography, which permits the three‐dimensional measurement of minute cusps. Tubercles on the mesial marginal ridge were more frequently found in Mongoloid populations (Japanese and Eskimo) than in others. The frequency of the protoconule was high in Eskimos and Negroids (Bantu and San). The lingual …
Skin and subcutaneous adipose tissue weights in older Japanese determined by cadaver dissection
Forty-six embalmed cadavers of elderly Japanese 48 to 95 years of age, 35 males and 10 females, were completely dissected, and the weights of skin and subcutaneous adipose tissue were determined. Absolute and relative skin weight in males (2.68 kg, 5.7%) were similar to those in females (2.73 kg, 6.1%). However, females had more dissectible subcutaneous adipose tissue (5.82 kg, 12.3%) than males (3.18 kg, 6.3%). These figures are comparable to di…
Frequencies of Occurrence of Accessory Tubercles and Other Traits in the Lower Deciduous Second Molar
The frequencies of occurrence of anomalous traits or tubercles on the lower second deciduous molar were investigated with the use of moire contourgraphy. A molar with negligible attrition was fixed in the tricuspal position where the position of the protoconid, metaconid and hypoconid were in a horizontal plane. A moire photograph in the pitch of 0.2 mm was thus obtained and examined. The frequency of occurrence of a tubercle was counted in three…
Ages at peak velocity and peak velocities for seven body dimensions in Japanese children
Seven body dimensions of 37 Japanese children, 16 boys and 21 girls, were measured longitudinally at 6-monthly intervals from 9 through 15 years of age. Spline curves were fitted to the longitudinal data of each dimension to obtain age at peak velocity and magnitude of peak velocity for each child. Ages at peak velocity for each dimension occurred, on average, later in boys than in girls. Mean peak velocities were also larger in boys except for c…
Medicine (8 works) · Mathematics (7 works) · Molar (6 works) · Anatomy (5 works) · Biology (5 works) · Cusp (singularity) (5 works) · Orthodontics (5 works) · Orthodontics (5 works) · Anatomy (4 works) · Demography (4 works)