풀어봅시다!!!  

2012년 3월 23일 QUIZ    

문제1: The researchers from Brazil examined the effectiveness of fluyoride varnish ( Duraphat ) at reducing white spot lesions. They measured the mineralized content of the enamel for the mesial, distal, gingival and occlusal quadrant of each tooth. In the comparison between the varnished and unvarnished teeth,
 

(1) overall difference was (         )

(2) difference was (          ) in gingival quadrant.
 

문제 2: Followings are materials used in interproximal reduction.         (advocated by Dr. Zachrisson)

A. perforated diamond-coated stripping disk

B. cone-shaped triangular diamond bur

C. fine sof-lex disk
 

2012년 3월 30일 QUIZ  

문제 1: It is reported that chitosan-containing dentifrice reduces demineralization around orthodontic bracket.
 

(1) Chitosan is derived from chitin which is a glucosamine and is mainly contained in the shells of (      ) and (      ).

(2) It has a pH of 6.3, which is suitable to buffer the oral pH value ( low, high) enough to prevent the deleterious action of organic acids on enamel surface.
 

문제 2: The Molmo university conducted a research regarding unilateral post x-bite correction in the mixed dentition, using Quad helix and expansion-plate appliance.
 

(1) Q-helix group showed (superior, similar, inferior) effect in increase of maxillary inter-molar width than the expansion-plate appliance.
 

(2) During treatment, slight increase of inter-molar width occurred also in the mandible in (Q-helix group, expansion-plate appliance group, both groups).

(3) 3 years after treatment, expansion was (stable, not stable) in Q-helix group.

(4) 3 years after treatment, expansion was (stable, not stable) in expansion-plate appliance group.

2012년 4월 6일 QUIZ  

문제 1: The Catholic University in Belgium performed a study regarding longitudinal changes in microbiology and clinical periodontal parameters after removal of fixed orthodontic appliances.

3 months after the removal of appliances,

(1) The amount of anaerobic bacteria (A, B).문제 1.:According to the guest lecture by Dr.Jon D Holmes,

Orthognathic surgery is generally done in an outpatient setting,

so that patients return home the day of the procedure.
 

문제 2: Based on the review "Lower incisor extraction" of Dent Press J Orthod 2010;15:143-61

the main indication to extract lower incisor is the presence of                         lower anterior excess or upper anterior deficiency.

(2) GCF flow (A, B).

(3) Probing depth (A, B).

(4) BOP for banded site (A, B).

(5) BOP for bonded site (A, B).
 

문제 2: The key to managing a situation in which patients want to

negotiate fees is to reinforce several important messages

with them when they ask for a discount. The first key message should focus on (         ) and refer specifically to materials, technologies, or methods. I call this the “confidence factor.” The second key message should explain the pros and cons. One example is to inform patients that the treatment you recommend will be (       ) expensive in the long term because it will help them preserve their overall health and well-being.
 

2012년 4월 13일 QUIZ  

문제 1.:According to the guest lecture by Dr.Jon D Holmes,

Orthognathic surgery is generally done in an outpatient setting,

so that patients return home the day of the procedure.
 

문제 2: Based on the review "Lower incisor extraction" of Dent Press J Orthod 2010;15:143-61

the main indication to extract lower incisor is the presence of                         lower anterior excess or upper anterior deficiency.

2012년 4월 20일 QUIZ  

문제 1: During the follow-up observation period of orthognathic surgery, (             ) was most prone to altered sensation.

① chin
② lip
③ cheek
④ teeth
 

문제 2.: (              ) is an optical, visible light-based system that can be used to detect and quantify early demineralization of enamel.

① QLF (quantitative light-induced fluorescence)
② Photographic examination
③ Clinical examination

2012년 4월 27일 QUIZ  

문제 1. Describe the following abbreviation

l  LED

문제 2. The term (           ) drinks refers to all drinks except alcohol, mineral water, fruit juice, tea, coffee, or milk-based drinks, which may or may not be carbonated.

문제 3. If you areplanning to move or renovate your practice, which factors will you consider? 
 

    ① The current facility
② The reason for relocation or renovation
③ The cost
④  Contingency plans
⑤  All of above

2012년 6월 15일 QUIZ   

문제 1. Describe the following abbreviation.

1)  ALARA

2)    CBCT

3)    Sv

문제 2. CBCT scanner has (    ) radiation, (   ) signal to noise ratio, (   ) noise, and (   ) artifact caused by metallic structures as compared to conventional  CTs.

문제3. Fluorosis may (increase, decrease) bond strength when using a self-etching primer.

2012년 9월 14일 QUIZ  

문제 1. Zoledronic acid is a synthetic bisphosphonate with anti-bone (resorption,formation) activity. An annual dose of zoledronic acid may prevent recurring fracture in patients with a previous hip fracture.
 

문제 2. Obstructive Sleep Apnea(OSA) has a considerable impact on quality of life, with excessive daytime sleepness, depression Choose the treatment of OSA.

    ① CPAP(Continuous positive airway pressure)
② Uvula plasty
③ Mandibular advancement
④ All of above

2012년 9월 21일 QUIZ  

문제 1. Describe the following abbreviations

   1) OSA
2) CPAP
 

문제 2. Recently, University of Amsterdam investigated risk factors for anterior disc displacement with reduction(AADR) and intermittent locking in adolescents.

What was a risk factor for intermittent locking? (             )

What was a risk factor for AADR? (             )

(          ) may be a risk factor for intermittent locking and (         ) may be a risk factor for AADR.

2012년 9월 28일 QUIZ  

문제 1.

1)    The sensitivity rate of a test is the probability that the test results are positive, given that the patient has the disease. (T, F)

2)    The specificity rate of a test is the probability that the test results are negative, given that the patient does not have the disease. (T, F)

문제 2. According to the study about the esthetic preferences for the shape of anterior teeth in a smile (AJODO 2011:139;806-14), (round, square) incisal edges on maxillary incisors can significantly improve smile esthetics.2)    T

2012년 10월 5일 QUIZ   

문제 1. The suggestions in Dr. Levin’s article offer a very practical way to improve team morale in your office.
 

 1. Dentists need to have a                .

 2. Dentists should begin the day the right way.

    The more the dentist cares about the team members, the more the     team members will care about the dentist and the practice.

 3. Dentists should go out of their way to recognize team members     throughout the day.

 4. Dentists should schedule an               with staff members
   at least once per quarter.

5. Dentists can consider instituting a               

2012년 10월 26일 QUIZ  

문제 1. Autonomous University State of Mexico investigated the influence of hydrogen and carbamide peroxide or resin-based coating materials (Beauty Coat, White Coat) for dental bleaching on the shear
bond strength of orthodontic brackets.
 

(1) Hydrogen and carbamide peroxide (did, did not) reduce the      shearbond strength.

(2) Resin-based coating materials (did, did not) reduce the shear     bond strength.
 

문제 2. Recently, University of Thessalonikievaluated the effect of miniscrew length and diameter on primary stability with two force levels, 50 and 250gms.

The results showed that length and diameter became significantly influencing parameters on miniscrew stability only when a (low, high) force level was applied.

2012년 11월 9일 QUIZ

문제 1. Recently, Stuttgart Hospital evaluated condylar resorption and functional outcome after “unilateral”  sagittal split osteotomy.
Of 23 patients, unilateral condylar resorption was seen in (one, two) patient(s), and bilateral resorption was noted in (one, two) patients(s). Excursive movements were (significantly, not significantly) different between the operated and the unoperated side.

문제 2. Florence University have assessed the effects of a compliance-free appliance, Forsus device, in Class Ⅱ patients.

The Forsus device had a restrictive effect on the (maxilla, mandible), and moved the (maxillary, mandibular ) molars and incisors forward.

2012년 11월 30일 QUIZ

문제 1. (1) In Caucasian population, (      ) %  of impacted maxillary canines were palatally positioned. (50  65  85  95)

(2) Dr. Baccetti recommends interceptive procedures to avoidimpaction of maxillary canines. Explain it briefly.
 

문제 2. (1) Patient compliance is greater with vacuum-formed retainers initially but, overall, is greater with Hawley retainers. (O, X)

(2) Esthetic concerns were a significant determinant of patient compliance. (O, X)

문제 3. 1) Untreated isolated growth hormone deficiency reduces all linear craniofacial measurements. (O, X)

2) The gonial angle was increased in isolated growth hormone deficiency individuals. (O, X)

문제 4.(1) Tooth movement in the ovariectomy group was more rapid than in the control group throughout the experimental periods. (O, X)

(2) Orthodontically induced root resorption in the ovariectomy group was deeper and more severe than in the control group. (O, X)

2012년 12월 14일 QUIZ

문제 1. The researchers from Sweden examined the long-term effects of ectopic canines on maxillary incisor root resorption.
 

(1) In most cases, the root resorption occurred on the (buccal, palatal) aspect of the maxillary incisors
 

(2) Maxillary incisor root resorption caused by canine ectopic eruption does not get worse in general after the maxillary canine is moved away from the affected teeth. (O, X)

문제 2. The Pontifical Catholic University of Brazil conducted a research regarding transverse maxillary deficiency, using Haas expander and Hyrax expander.
 

(1) To obtain standardized images and compare the measurement between before and after expansion, the authors used the axial slices that displayed the root canal in the most apical region of the (palatal, mesiobuccal, distobuccal) root of maxillary (first, second) permanent molars.
 

(2) The Hyrax expander produced greater orthopedic effects than did the Haas expander, but this effect might not be clinically significant. (O, X)

2012년 12월 21일 QUIZ  

문제 1. What is the best solution for managing the departure of a long-term employee?

 Practice should have           .

①    Documented system

②    New staff member

③    New doctor

④    All of above

문제 2. Choose the answer in the box.

(1) (   ) is considered to be an oral parafunctional activity and is characterized by sustained masticatory muscle contraction.

한 주에 한 명의 대학원생이 그 주에 공부하게 되는 논문 내용 중 한가지를 선택하여 tape를 dictation해온 내용을 함께 모여 공부하는 시간입니다. 영어 청취력 향상과 함께 presentation 기법을 배울 수 있는 좋은 기회라고 생각합니다. Dictation된 글은 임회정 교수님께서 확인 수정합니다.