HOFFMAN, 0. E.: Iowa State Department of Health, Des Moines, Iowa (Jan. 21, 1939).

Fifty-six case-records, selected by chance or random sampling from the practice of Dr. James M. Prime—showing effects of treatment with Howe’s solution to arrest proximal incipient caries—were subjected to statistical analy­sis by the Division of Dental Hygiene. The applications of Howe’s solution were repeated for periods ranging from a few months to more than six years, the treatment-interval varying from about three months to more than six. The total number of etched (minimal carious) areas thus treated was 887; the total number of treatments was 5304—approximately 6 per carious surface. Caries was arrested in every case. A questionnaire, issued by the same Di­vision, on causes and control of caries, included the recent responses, in Table 1, from 699 dentists in Iowa-12 not in active practice.

TABLE 1
Responses to a questionnaire on causes and control of caries

 

Question A.                           What do you believe to be the cause or causes of tooth decay?

 

(1)

Inadequate nutrition…………………… 502 (14)     Insufficient coarse foods……………. 5
(2) Improper oral hygiene…………………… 414 (15)         Poor assimilation……………………… 3
(3) Overingestion of carbohydrate food,   (16)         Worry and fear………………………….. 3
  starches and sugars………………… 390 (17)     Insufficient rest and relaxation….. 2
(4) Vitamin deficiency………………………..

386

(18)     Improper prenatal care ……………… 1
(5) Hereditary factors…………………………

308

(19)         Bolting food   …………………………… 1
(6) Aciduric group of microbr-   (20)   Deep sulci …………….. 1
  ganisms…………………………………. 257 (21)   Insufficient rest-period for  mother  
(7) Endocrine dysfunction………………….

193

before child birth …………………….. 1
(8) Streptococcus odontolyticus…………. 70 (22)         Demineralized soil …………………….

1

(9) Improper mastication ………………….. 11 (23)         Acid saliva………………………………… 1

(10)

Malocclusion………………………………. 11 (24)         Chocolate foods…………………………

1

(11)

Improper prenatal nutrition………….. 9 (25)         Poor operative dentistry……………… 1

(12)

Metabolic imbalance…………………….. 8 (26)          Malformation……………………………. 1

(13)

Childhood diseases……………………….

7

(27)         Chewing gum……………………………. 1
  Question B.    What preventive treatment do you find successful for deciduous teeth?  
(1) Silver nitrate solution (Howe’s)… .

343

(21)         Carbo-eugenol………………………….. 4
(2) Adequate nutrition for child…………

256

(22)          Pulprotex…………………………………. 3
(3) Tooth brushing…………………………….

136

(23)     Inlays………………………………………. 2
(4) Copper amalgam………………………….. 76 (24)         Extraction ……………………………….. 2
(5) Early cavity filling…………………………. 65 (25)         X-ray………………………………………… 2
(6) Prophylaxis…………………………………. 65 (26)          Milk of magnesia……………………….. 2
(7) Early and frequent examinations… 52 (27)          Cod-liver oil ……………………………… 2
(8) Prenatal nutrition………………………… 41 (28)          Zinc chloride-eugenol………………… 1
(9) Copper cement…………………………….. 39 (29)          Zinc oxide and silver nitrate……….. 1

(10)

Amalgam…………………………………….. 34 (30)          Pustolene…………………………………. 1

(11)

Calcium-phosphate……………………… 21 (31)         Alkalizing………………………………….. 1

(12)

Zinc oxide-eugenol……………………….. 20 (32)          Merthiolate, 1-1000 sol………………. 1

(13)

Red copper cement……………………….. 15 (33)          Public school instruction…………… 1

(14)

Child-dent alloy. …………………………. 13 (34)          Formalin ………………………………….. 1

(15)

Clean out decay. …………………………. 9 (35)          Neo-siltrate ………………………………. 1

(16)

Eugenol………………………………………. 6 (36)          Acriflavine………………………………… 1

(17)

Sterilizing agent (not specified) …. 6 (37)          Thymozine…………………………………

1

(18)

Grinding and polishing roughened   (38)         Reduction of carbohydrates in diet . 1
  surfaces………………………………….. 5 (39)          No candy………………………………….. 1

(19)

Black copper cement…………………….. 5 (40)          Phenol …………………………………….. 1

(20)

Silvo-dent……………………………………. 5 (41)          Sodium bicarbonate…………………… 1

 

Reference: Dental Report No. P.D. 5, Div. Maternal and Child Health, Ia. State Dep. Health, 1939.

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