Figure 19 shows the results obtained. Simultaneously, a statistician, one of our co-researchers was asked to analyze this result, whereby it was revealed that as shown in the correlation line, there was a folding point around the current number of 13～15 teeth, and the subjects could be assigned into the following three groups; the subjects with more than the number of teeth at the folding point, the subjects with less than the teeth at the folding point and the subjects with no teeth. In these three groups, there was an inflexion point at the border of each classification, suggesting presence of some systematic qualitative difference among these groups.
Figures 20 and 21 provide the distribution of both systolic and diastolic blood pressures in the subjects with more than the number of teeth at the folding point. Both of these figures show positive correlation, indicating that with increase of the current number of teeth, blood pressures become higher.
For your better understanding, the mean blood pressures were compared between the subjects with more than 20 teeth and those with less than 19 teeth. As shown in Figure 22, the subjects with more than 20 teeth scientifically showed higher values both in systolic and diastolic blood pressures.
Next comes the distribution patterns of systolic and diastolic blood pressures in the subjects with less than the teeth number at the folding point (Figures 23 and 24). On the contrary to those beyond the folding point, however, negative correlation was found between the present number of teeth and both systolic and diastolic blood pressures; this indicates that with increased number of the present teeth, blood pressures are decreased. In the subjects without own teeth, the systolic blood pressures were ranging from 95 mmHg to 158 mmHg with the diastolic blood pressures being distributed from 54 mmHg to 83 mmHg.
Thus, the correlational analysis between the current number of teeth and blood pressures disclosed for the first time presence of correlation of teeth with the blood pressures which had not been even suspected. However, blood pressures are susceptible to individual difference factors of the subjects such as ages and systemic background factors including body weight, plasma triglycerides and plasma cholesterol. Accordingly, as is the same with salivary secretion functions, all we have to do is to verify the real influences of teeth on blood pressures following more careful elimination of influences of background factors.
We promptly started studies to confirm the correlation of the two factors between teeth number and blood pressures by using the multi-variable analysis, with the cooperation of internists and statisticians. If teeth as the factor providing obvious influences on blood pressures can be confirmed by multi-variable analysis, we can declare decisive relationships between teeth and autonomic nerves.
In more details, most of the front teeth must be ground to improve the direction of each tooth. At the age of 19 years old, Basedow's disease occurred and since then, she felt fears of her health; however, probably, all of these anxieties stemmed from dental problems. In addition to this case, there are lots of patients whose symptoms related to hypertension or hypotension were alleviated in parallel with recovery of their dental health. As is obvious from these cases, we can say that teeth are clinically associated with blood pressures.
Figure 20
Correlation between the maximum blood pressure (systolic blood pressure) and the current number of teeth (more than 13 teeth) by the correlation line
There was a positive correlation between the residual pattern of teeth and the systolic blood pressure. In other words, loss of teeth results in reducing the blood pressure.
Figure 21
Correlation between the minimum blood pressure (diastolic blood pressure) and the current number of teeth (more than 13 teeth) by the correlation line
There was a positive correlation between the residual pattern of teeth and diastolic blood pressure. In the similar manners as the systolic blood pressure, loss of teeth results in reducing the blood pressure.
Figure 22
Influences of teeth on blood pressures
When the mean blood pressure was investigated in the subjects either with more than 20 teeth as the current residual number or with less than 19 teeth, the subjects with more than 20 teeth left obviously showed higher blood pressure.
Figure 23
Correlation between the maximum blood pressure (systolic blood pressure) and the current number of teeth (≦15 teeth) by the correlation line
There was a negative correlation between the residual pattern of teeth and systolic blood pressure. In other words, loss of teeth results in increasing the blood pressure.
Figure 24
Correlation between the minimum blood pressure (diastolic blood pressure) and the current number of teeth (≦15 teeth) by the correlation line
There was a negative correlation between the residual pattern of teeth and systolic blood pressure. In other words, loss of teeth results in increasing the blood pressure.
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