Who Should Enter Dental School?

Peterson, Shailer

doi:10.14219/jada.archive.1946.0023

Cited by 4 publications

(2 citation statements)

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“…1 The MDT was originally introduced by the American Dental Association in the late 1940s as one of a battery of admissions tools designed to reduce attrition rates in U.S. dental schools since, in the mid-1940s, some dental schools had attrition rates approaching 50%. 2,[4][5][6][7][8][9][10][11][12][13][14][15] After the MDT was implemented as an admissions tool to eliminate applicants with poor manual dexterity skills, subsequent studies found correla-tions of MDT with psychomotor skills development courses among the admitted students to be generally low. Initially, the MDT was administered to students already admitted into dental schools.…”

Section: Value Of the Manual Dexterity Test As A Screening Tool For Dmentioning

confidence: 99%

“…3 The results indicated a wide range of manual dexterity abilities, and the MDT results were highly correlated with performance in psychomotor skill development (technique) courses. 2,[4][5][6][7][8][9][10][11][12][13][14][15] After the MDT was implemented as an admissions tool to eliminate applicants with poor manual dexterity skills, subsequent studies found correla-tions of MDT with psychomotor skills development courses among the admitted students to be generally low. [16][17][18][19] This was likely due to the fact that applicants with low MDT scores had not been accepted into dental programs.…”

Section: Value Of the Manual Dexterity Test As A Screening Tool For Dmentioning

confidence: 99%

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Value of the Manual Dexterity Test as a Screening Tool for Dental School Admissions

Cleghorn

Brillant

Kraglund

et al. 2018

Journal of Dental Education

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The Manual Dexterity Test (MDT) was originally developed in the 1940s as part of the American Dental Association's Dental Aptitude Test to assist in reducing high attrition rates in U.S. dental schools. The Perceptual Motor Ability Test (PMAT) replaced the MDT in 1972 in the U.S., but the MDT continues to be available in Canada. The MDT was originally developed to be used as a screening tool to eliminate those applicants who demonstrated poor psychomotor skills, and it was very effective in doing so. The MDT has been subsequently criticized for not being an effective predictor of performance in dental school. The aim of this study was to determine the level of correlation between MDT scores and psychomotor skills assessment scores in preclinical psychomotor skills courses in the DDS program at Dalhousie University. Three key preclinical psychomotor skills courses were identified, and their course coordinators were asked to identify students who had been accepted into the program but had extremely weak psychomotor skills. Those students’ psychomotor skills scores were then compared to their MDT scores. The results showed that when the student had an MDT score of 10 or less, there was high sensitivity (though low specificity) in identifying students with extremely weak psychomotor skills. Those students with MDT scores of 11 or above were unlikely to have difficulties in psychomotor skills courses. These findings support the MDT's use as a screening tool in the admissions process and a minimum cut‐off score of 11 out of 30.

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Section: Value Of the Manual Dexterity Test As A Screening Tool For Dmentioning

confidence: 99%

Section: Value Of the Manual Dexterity Test As A Screening Tool For Dmentioning

confidence: 99%

Value of the Manual Dexterity Test as a Screening Tool for Dental School Admissions

Cleghorn

Brillant

Kraglund

et al. 2018

Journal of Dental Education

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Wissenschaftliche Tagung der Nordwestdeutschen Chemiker Göttingen. 21.–23. September 1946

1947

Angewandte Chemie

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Wir finden in der Hefe das Vitamin B,, den B,-Komplex rnit dem Nicotinsaureamid, dern Vitamin ,Be, der Pantothens2ure, die iibrigen B-Faktoren, Vitamin D und seine Vorstufen, die E-Vitamine und Vitamin H. Es fehlen nur die Vitamine A, C und K. Die Vielseitigkeit dieser synthetischen Leistung erlaubt einen Vergleich r u r im Tierreich mit der Leber, die Ernahrungswirtschaft sollte hierauf entsprechend Riicksicht nehmen. In der Sulfitablaugenhefe sind von Felix die einzelnen Aminoverbindungen analytisch genau erfaBt worden. Er fand z. B. Aianin-und Glutaminsaure (vgl. Tab. 2), deren Menge -1296 der Hefe ausmachen, ferner Phenylalanin, Oxyglutaminsaure, Threonin, Oxyproli I, Tyrosin, Tryptophan, Cystin, Methionin, Arzinin, Lysin, Asparaginsaure, und Histidin. Die Hefe enthllt auch -1 yo vom Gesamt-Stickstoff als Purin, so da6 2-2,2"/0 Purin in der Hefe anwesend sind. Da Harnsaure oder Trioxypurin im Korper unerwiinscht ist, wfirde man den Purin-Gehalt der Hefe gerne missen. Andererseits hat aber Heupke mit Mitarb.4) in wochenlangen klinischen Versuchen an 272 Versuchspersonen nachgewiesen, da6 bei taglichen Hefegaben von 20 g/Kopf und Tag eine nachweisbare Anreicherung des Harnsaure-Spiegels im Korper nicht auftritt. 20 g Hefe entsprechen aber 7 gehauften EDloffeln Flockenhefe, eine Menge, die kaum von einem Menschen gegessen werden wird. Das Hefeeiwei6 rechnet Felix zu den vollwertigen EiweiB-Sorten, er macht damit in der Bewertung eine gewisse Einschrankung gegeniiber den hochwertigsten Eiwei6-Sorten, weil der Gesamtgehalt an Valin, Leucin und Isoleucin, also den unentbehrchen AminosBuren, iioch etwas gering ist, ebenss der Gehalt an Cystin mit Riicksicht auf dessen Bedeutung tur die Blutregeneration im menschlichen Korper. Diese Kritik sot1 natiirlich nicht den Wert der Hefe fur die menschliche Ernahrung abschwachen, sondern nur vor einer einseitigeii Uberbewertung warnen. Um die geschmacklichen Hemmungen bei einem hoheren Hefeverbrauch zu beseitigen, ist vorgeschlagen worden, die Hefe mit Mehl 1 : 1 zu Broseln zu verarbeiten und diese Brosel nun in beliebig:n Mengen zu Saucen find Suppen zu verwenden, wodurch nicht nur eine EiweiOanreicherung, sondern auch eine geschmackliche und quaiitative Aufwertung der Speisen bewirkt wird. Bei der Verwendung der Hefe ah Viehfutter hat man folgende praktische Versuchsergebnisse erzielt: Bei Kiihen hat sich der Milchertrag urn 3-5 I/Tag erhoht, gleichzeitig ist das Gewicht nach 234 Monaten gegenuber dem Kontrolltier um 1 '/2 Zentner gestiogen ; bei Ferkeln betrug die Gewichtszuhahme, wenn die Kontrolltiere die gleiche EiweiDmenge statt als Hefe in Form von Fischmehl erhielten, tiber 24%. Hiihner wachser bei Hefezufiitterung schneller und legen schon nach 4 % statt 6 Monaten Eier. Das Lei-' ) Angew. Yochwiss. 2, 34 [19431. Versammlungsberichte stungsvermagen von Militrrzugpferden wurde bei Hefezufiitterung einwandfrei als gesteigert festgestellt. Eetrachten wir noch die Hefeerzeugung im Rahmen des Bedarfs, 60 miiasen wir feststellen. daO wir jiihrlich etwa h Mio. t EiseiD in F...

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Aptitude testing and the selection of dental students

Spratley

1990

Australian Dental Journal

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This paper discusses the problems involved in the selection of dental students and the need for some form of aptitude testing. It describes the situation in the United Kingdom both in the past and the present, and then describes in detail the situation in North America (both in the United States and Canada). The Dental Admission Test, its history and the research into its development are described with particular emphasis on the dexterity, perceptual and aptitude components of the test. More recent research into dexterity and aptitude testing of dental students is also covered. However, it is apparent that many questions remain unanswered.

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Who Should Enter Dental School?

Cited by 4 publications

References 1 publication

Value of the Manual Dexterity Test as a Screening Tool for Dental School Admissions

Value of the Manual Dexterity Test as a Screening Tool for Dental School Admissions

Wissenschaftliche Tagung der Nordwestdeutschen Chemiker Göttingen. 21.–23. September 1946

Aptitude testing and the selection of dental students

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