t, JMY 19, 1957 THE MICMGAN DAILY PAGE L 0 V..V-- '. ru~v 19. 1957 THE MICHIGAN DAILY PAGE CONCERN FOR PATIENTS: Dental School Explores Ways of Reducing 'Torture' *1 11 More comfort for the patient and superior materials for fillings and dentures are the objectives of research in the Dental Materials Testing Laboratories of the Uni- versity School of Dentistry, said Pror. Floyd A. Peyton, head of the dental materials department. Investigators are constantly at work cutting extracted human teeth into sections, exposing them to tests and then attempting to develop new materials of superior quality for replacing tissue lost due to decay or accidents. Engineering and mechanical principles are applied in this type of research because, as Prof. Pey- ton puts it, "'We are dealing with the body's food crushing machin- ery, the teeth." In addition to comfort, it is the goal of these researchers to find materials that can be inserted, more quickly and conveniently in- to the patient's mouth. Special Projects Dental Materials Testing Labor- atory is currently conducting eight special research projects, six of which are being sponsored by the Army, Navy, Air Force, and Public Health Service. Coun't Basle Concert Set Prof. Peyton compares the ac- tion of teeth when chewing to that of a giant press. Because of the similarity, artificial tissue replace- ment naterials are tested in a small compression and tension machine. He estimates that the bite of a husky person "may exert up to 200 pounds, of pressure." A less rugged person may have a normal bite presure of 50 pounds and the average Is "probably between 50 and 75 pounds." I.ocation of the tooth in the mouth is important in determin- ing tooth pressure. Prof. Peyton adds that the pressure capacity depend§ on the dimensions and area of the tooth. Withstands Pressure A normal human tooth may be able to withstand pressure of from 40,000 to 60,000 pounds per square inch without breaking. Dental materials researchers are working with materials:( used in restorative dentistry such as gold alloys, silver alloys, plastics, porce- lains, cements, and impression ma- terials. They also work with denture materials such as acrylic, porce- lain, and chrome alloys; and with orthodontic materials such as sil- ver and gold. Researchers are interested in changes in dimension of these materials when introduced into the patient's mouth. They are concerned with the snugness of the fitting and the dimension re- lationships between restorative materials and live teeth. Hot coffee or cold water can be painful when a filling or other re- storative material is not compat- ible with the reactions of natural tooth tissue. They are also interested in the hardness and strength of these materials. Will they last and will they react in the same way as' normal tissue? Use Water Spray One of the valuable results of recent research in Prof. Peyton's department was the determination that using a water spray to cool the dental drill will reduce the patient's pain. For experimental purposes and instead of subjecting patients to "torture," they took an extracted tooth, mounted it, made a cut with the standard drill, and meas- ured the heat generated. Researchers found that the water spray reduced the frictional heat to a comfortable level for the patient. 'Filling' Teeth Sections of human teeth are be- ing "filled," then exposed to heat and cold, in order to learn the best and most compatible "substances for use in restoring teeth. Hook shaped wires and clasps which anchor partial dentures come in for their share of engi- neering tests, too. On a machine which flexes short lengths of the wire used for clasps in partial dentures, they are ex- posed to millions of "bends" or flexures within a few hours. Flexures duplicate the flexing of clasps in the mouth with each bite. One of Prof. Peyton's students found that an average person makes about 5,000,000 "chews" per year. Gold-Old 'Standby' Prof. Peyton stated that of all: the filling materials available to- day, the old stand-by, gold alloy, has not lost any of its importance over the years. "Some persons prefer other sub- stances for aesthetic reasons," he says, "but it is a mighty fine restorative material from practi- cally all aspects." He says that much work is being, done on improving plastics for restorative purposes, as some of the early plastics were unsuitable colorwise. I PROF. DAVIS: Underprivileged -Pupils Lack A ttention in Class Prof. Allison Davis of the Uni- versity of Chicago stressed the importance of training socially underprivileged children in a lec- ture yesterday. His talk, "Reaching the Masses of Pupils," highlighted the last general session of the 28th annual Summer Education Conference under the auspices of the School of Education. The conference be- gan Tuesday. Prof. Davis stated that lower Administration Institute Meets Two sessions of the Third An- nual Institute on College Admin- istration were held yesterday in the Michigan Union. General theme was "Student Personnel Administration." A spe- cial luncheon featured an address by Prof. Algo D. Henderson, of the School of Education. Two more sessions at 9 a.m. and 2 p.m. today at the Michigan Union will cover the theme "De- fining and Implementing Pur- poses." class children and their teachers are separated by a forest of im- penetrable cultural barriers which make real communication between the two extremely difficult. To break down this barrier, he said, it is necessary that the teacher understand the child's language, discover the pupil's at- titude toward the teacher, and overcome his own biases. Turning to' the problems of the middle class child, Prof. Davis said, "Middle class culture places great emphasis on the distant re- wards of a career or profession." This puts children under pressure to obtain the arbitrary goals set up for them or face the disgrace of failure.. He pointed out a behavior differ- ence between the classes. The low- er class child can fight when he is angry and does not have to "accept the false peace" which the parents of middle class child- ren impose. In conclusion, Prof. Davis vigor- ously criticized today's curriculum as barrier to understanding on the basis that they force children "simply to miemorize.", MUSICAL MDSE., CAR SERVICE, ACCESSORIES RADIOS, REPAIRS H F EUROPEAN CARS We service all foreign cars. Speakers 33Ahe O550 Bozak, AR-1, Electro-Voice, Lansing ANO 5-5800 )S6 Fisher, Sherwood, Scott, McIntosh, Rel T IR E SA LE K its Prices slashed Dynakit, Eico, Arkay, Audax Big trade-in for used tires Fully Guaranteed Recorders GOLDEN'S SERVICE Viking, Berlant, Bell featuring STANDARD Products 601 Packard - NO 8-9429 Turntables )8 Rek-O-Kut, Connoisseur, Garrard. Presto , C-TED STANDARD SERVICE Friendly service is our business. At. Visit our Hi Fi Showrooms for a las tires, batteries and accessories. stereo demonstration Warranteed & guaranteed. See us for the best price on new & used tires. Audio Supply Laboratories Road service - mechanic on duty. "You expect more from Standard 334 Nickels Arcade and you get it"' (Above Bay's Jewelry) 1220 S. University at Forest NO 2-7767 NO 2-9425 NO 8-9168 _S__ )X4 EXPERT FOREIGN and Sports Car Service Nye Motor Sales, Inc., 514 E. BA L DW I N PI ANOS Washington. NO 3-4858. )S3 Acro'sonic Spinets Used spinets and uprights Read the Classifieds Maddy Music PHOTO SUPPLIES 508 E. William NO 3-3223 )X5 USED CAMERAS Argus C-3 Camera, Case, and Flash, $34.50. Argus C-4 Camera, Case, and Flash, $54.50. HI STI THE QUARRY, INC. An amazing inventory of HI F j320 S. State NO 3-1991 components available to you at )D10 cdtalogue price. KITS BUSINESS SERVICES WASHINGS - Also' ironing separately. We stock amplifier, AM-FM tuner, Specialize in cotton blouses and and speaker enclosure kits in sev- washed skirts. Free pick up and de- eral brands. livery. Phone NO 2-9020. )J1 HI F ISERVICE FOR RENT AVAILABLE NOW-two rooms and bath, Our engineers and technicians are partly furnished, campus location. fully competant and equipped to Phone NO 2-7395. )C22 service all equipment we sell. and to advise you on the selection of ON-CAMPUS room for two boys in components. exchange for yard work and painting. Graduate students preferred. NO 8- 1217 & 1317 So. University 7391. )C21 NO 2-9595 WILL RENT my home to 4, 5, or 6 )X2 responsible students furnished. Hur- ron River Drive 'near Ypsilanti City Limits. Call HU 2-6295. )C23 Read and Use COOL CAMPUS apartments, some rooms. 514 S. Forest. Call NO 2-1443. Daily Classifieds )C9__________ : i.: t 3 I 3 3 } s v FOR SALE SHORT SLEEVE sport shirts. $1.75, 2 for $3.00. Washable. Assorted colors. SAM'S STORE Phone NO 3-8611 122 East Washington )B2 WILL SELL almost new C-44 Camera (3 rols taken) for a reasonable sum. Call NO 2-2231 after 7 p.m. )B7 MINIATURE ESTATE Small house set amid towering oaks on acre of river front property at the end of a country lane. Only 15 minutes west of Ann Arbor. LR, 2BR. K, Bath, Garage. Owner, NO 5-1575. )B10 EXPOSURE METER, Westbn Master II. Never used. $25. Call NO 2-3762. )B9 PETS AND SUPPLIES TROPICAL FISH aquariums and sup- plies, Hamsters, Parakeets, etc. UNIVERSITY AQUARIUM 328 East Liberty N03 -0224 (Open daily except Thursday) ALTERATIONS - DRESSMAKER Alterations, Restyling 334 S. State St. NO 3-6612 )P1 Read Daily Class if jeds G * R ROOM AND BOARD SUMMER ACCOMMODATIONS avail- able at law fraternity in exchange for 25 hours work per month. Call Don Dodge at NO 2-5614. )E6 TWO MEALS, $2 per day, five days a week -- Mon. - Fri. Call Bill Powell, at Phi Kappa Tau, corner HiI and Tappan. NO 3-8581. )E2 USED CARS 1956 OLDSMOBILE Holiday Hardtop, 9 months old, 1$,004 miles. In excellent condition. Call NO. 5-1723 between 5:30 and 8 p.m. HELP WANTED WOMAN WANTED for typing and fil- ing, 25 to 40 hours per week. Sched- ule can be altered, but same number of hours each week. Job starts now and continues throughout the school year-longer if desired. Follett's Michigan Book Store. )HIS ANN ARBOR EMPLOYERS PERSONNEL 504 First National Bldg., NO 5-6107 )H8 WANTED MEN AND WOMEN. Work so. cording to own schedule. Good in. come potential, besides work you 'll be sure to enjoy if you liker ueetin people. Interview held Mon.-i. ,from 4-6 at 1309 5. University, room 3. ADVERTISING SOLICITOR for local publication. Good commission. A very profitable part time job for man or girl student. Write P. O. Box 474, Ann Arbor, Mich. )Hls . . . FIRST . . In Modern Comfort - . .FIRST ... In Air-Conditioning ..FIRST.. In New Hair Styling 715 North University Today and SATURDAY 4um DIAL NO 8-6416 From the author and producers of "The Cruel Sea," another great tale of suspense and high adventure! -- --m- -- -- COUNT BASTE 0.,'. swings' soon ADVENTURE ON THE -1 "One O'clock Jump." "April in Paris." Yes, Basie's coming. Count Basie and his interna- tionally famous orchestra featur-' ing Joe Williams are scheduled for a July 24 concert at Hill Audi- torium. Reserved seats for the 8 p.m. concert are on sale at the Hill Auditorium Box Office. Featured in the Basie band is one of the world's most noted rhythm sections: Sonny Payne on drums, Freddie Green, guitar; Ed- die Jones, bass; and Basie on the piano. Physiology Tall Today { "Comparative Cellular Physi- ology" will be dealt with by Dr. Wayne Umbreit in a lecture at 3:30 p.m. today in Rm. 1300 of the Chemistry Building. Associate director of the Merck Institute for Therapeutic Research in Rahway, N. J., Dr. Umbreit is here on A visit sponsored by the bacteriology department. -CAMPUS-- 211 S. Stoate NO 8-9013 -DOWNTOWN-- 205 E. Liberty UrPNO 2-0675 for the Finest in Recorded Musie Closed at 1:00 P.M. Saturday During July & August I F 9 LADIES' ACTING EXCELLENT" -DAVID KESSEL, The Michigan Daily TWOv/ DAYS MORE FRIDAY and SATURDAY 8:30 P.M. I ELIGIBLE TO JOIN ? DANCING Friday and Saturday Nights - - * Members and Guests> CI~UJMary Lou 314 EAST LIBERTY Air Conditioned Little Theatre Production of "Ladies in Retirementi Late Show Starts at Midnight All in Color "THE BRAVE ONE" and RAY MILLAND in "MAN ALONE" Late Show Starts at Midnite All in Color FRED MacMURRAY in "GUN FOR A COWARD" JULIA ADAMS in "FOUR GIRLS IN TOWN" Rea r HIGH SEAS! TW* tby the author of rh. Civet Seat RICHARO ATTENBOROUGH GEORGE BAKER. BILL OWEN VIRGINIA MCKENNA SProdued t nd d-r --ld byMIC'AEL N S I and ISt MM A Michal I ICon AalAt Studios ProihaCljo J ""' A Coninnal,, ht..,in6g., W RMha "Brave action on the bounding sea, whic hthe English know; love and handlel so well!" -Archer Winsten, N.Y. Post 5..JI Art~w AAt Dwt*NN owehls$ NICHOLAS MONSARRAT'S Directed by Ted Heusel i "SUSPENSEFUL! ABSORBING!" -Rose Pelswick, Journal American LITTLE THEATRE New Ann Arbor High School f Call NO 3-6198 for Reservations Box Office Open 10:00-5:00 I J "a d, - _ __ WA MID-SUMMER CLEARANCE DRE SS ES $9 d14 Formerly to $29.95 Swim Suits $7 $13 Formerly to $19.95 Cotton Skirts and Slacks Pastel Wool Skirts Regularly $5.95 Regularly to $14.95 $3.88 $6 and $9 UNIVERSITY0 O SUMMER SESSION BHASKARo & SASHA AUTHENTICO INDIA DANCERSO TONIGHT! o 8:00 P.M. '::.: :. :,,,:_ v :"; fi: : ;;. ':.. " ;".. ';; .. ': . ; P : Enoy Yourself before the MIovie., PLAY DIAL NO 2-3136 -ENDS TODAY- 2 . CINEMA(--COPI= COLOR bi :U opens SATURDAY! "TERRIFIC is the word .. you'll find it great fun!" .:A Journal American MOST HIGHLY RECOMMENDED!" ...N. Y. Post -j DIAL NO KANITH Big ..Burning I axchftmentI Y .+ J ' lodern e na 2-2513 I~jN 4 I Corresponding reductions on other spring and summer apparel and accessories Malifl . - ,I I4I 1 _ I I';,