풀어봅시다!!!  

2015년 03월 06일 QUIZ   

문제 1: University of Minnesota evaluated effects of four treatment strategies for TMJ closed lock.

(1) Four treatment strategies for TMJ closed lock are as follows:

1. medical management
2. non-surgical rehabilitation
3. (                 )
4. (              )

(2) There was (significant, slight, no) difference between treatment strategies relative to any treatment outcome at any follow-up.

문제 2: Meir Medical Center in Israel evaluated how to reduce chronic headache in adolescents.

(1) The subjects were 30 adolescents with chronic headache and excessive  (    ) chewing.

(2) The study concluded that discontinuation of excessive (     ) chewing can effectively eliminate chronic headaches in some adolescents.

2015년 03월 13일 QUIZ   

문제 1: Researchers from Australia compared the pre-and post-treatment arch widths and buccal corridor changes in subjects treated with or without premolar extractions.

(1) There was a significant increase in the post-treatment maxillary intercanine width in the (extraction, nonextraction) group, but not in the (extraction, nonextraction) group.

(2) There were (no, significant) differences in buccal corridor widths between the extraction and nonextraction groups.

문제 2: Periodontist, endodontist, and prosthodontist of Guilan University evaluated the survival rate of teeth undergoing multidisciplinary treatment.

(1) The survival rate of teeth was evaluated by using (             ) analysis.

(2) The survival rate of teeth undergoing multidisciplinary treatment was (    )% at 5 years and (    )% at 10 year.

문제 3: Excessive gingival display, commonly termed (            ), is a condition in which there is an over exposure of the maxillary gingiva during smiling. Anterior dentoalveolar extrusion is treated with orthodontic (extrusion, intrusion) and vertical maxillary excess is treated with orthognathic surgery.

문제 4: A study about long-term post-treatment changes in all criteria of the ABO model grading system reported that (             ) became worse, while (              ) significantly improved during retention

2015년 03월 20일 QUIZ   

문제 1: Federal University of Bahia at Brazil evaluated how people who wear fixed orthodontic appliances see themselves and how they are seen by others in social settings.

(1) The subjects saw themselves as more beautiful when not wearing a fixed appliance, followed by wearing a ( ceramic, metal ) bracket, and finally a ( ceramic, metal ) bracket.

(2) For the lay people not currently undergoing orthodontic treatment, there was (more, same, no) significant difference found between the 3 photographs, no brace, ceramic, and metal brackets.

문제 2: University of Mansoura at Egypt evaluated how different arch wire affects force lost to friction.

As a result, stainless steel wires showed the (lowest, highest) amount of force loss, followed by NiTi wires. TMA wires showed the (lowest, highest) force loss.

2015년 03월 27일 QUIZ   

문제 1: The University of Regensberg at Germany assessed the possible association between tinnitus and TMD and investigated the effect of functional therapy of TMD on tinnitus.

(1) Prevalence of tinnitus was found to be (2, 4, 6, 8 ) times higher in participants with TMD than in participants without TMD.

(2) Dental functional TMD therapy may have (a negative, no, a positive ) effect on subjects with simultaneous symptoms of both TMD and tinnitus.

문제 2: University of Molmo in Sweden evaluated the long-term effects of Herbst treatment on tooth position and occlusion. Dental casts were analyzed from before and after treatment, and 6 years and 32 years after treatment.

(1) Overall, acceptable long-term results were seen. Most post-treatment changes occurred ( during, after ) the first 6 years after treatment.

(2) Long-term post-treatment changes including mandibular incisor irregularity seemed to be (dependent, independent) of treatment and a result of (           ) dentoskeletal changes throughout adulthood.

2015년 04월 03일 QUIZ   

문제 1: Ghassemi M et al. evaluated the effect of mandibular setback on cervical region.

(1) The amount of mandibular setback (did / did not) significantly affect the upper lip thickness, upper lip length, or lower lip length.

(2) Larger mandibular setbacks (>5mm) show (increased / decreased) upper lip retraction, (increased / decreased) cervical length, and greater changes in the lip-chin-throat angle.

문제 2: Caixeta ACP et al. investigate the dental arch chages after adenotonsillectomies in prepubertal children and to compare the dental arch dimensions of mouth-breathing and nasal-breathing children.

As a result, (mouth-breathing / nasal-breathing) showed deeper palatal vaults, greater mandibular intercanine and intermolar widths, and greater mandibular arch lengths.

2015년 04월 10일 QUIZ   

문제 1: Sondhi A et al. described the easy method of gaining rotational control using passive self-ligating brackets.

(1) (            ) method is a revised twin-wire method.

(2) According to this method, at the second appointment, a second round archwire is inserted in the bracket slots (with / without) dislodging the initial alignment archwire.

문제 2: Meyer AH et al. evaluated the effect of buccal corridor widths and nonextraction versus premolar extraction treatment on facial attractiveness.

(1) A (                ) was used to assess facial attractiveness for each subject.

(2) There were (no / significant) difference(s) in ratings for the extraction and nonextraction subject groups, and the buccal corridor widths and areas (affected / did not affect) the frontal facial attractiveness ratings.

2015년 04월 17일 QUIZ   

문제 1: Ueki K et al. evaluated the changes in Class III prognathic patients’ mandibular border movements before and after orthognathic surgery.

(1) There are (significant / no significant) difference between SSRO alone and SSRO with Le Fort I osteotomy in time-course change.

(2) There is a (reduction / increase) in the border movement of the mandible when measured at 6 months postoperatively. The measured border movement recover to presurgical levels when measured at 1.5 years postoperatively.

문제 2: Dr. Levin suggested 4 steps that dentists can take to develop the “right” team.

(1)  Identify and work toward (       )

(2)  Implement excellent scripting

(3)  Replace outdated system

(4)  Emphasize (             )

2015년 04월 24일 QUIZ   

문제 1: Halicioglu K and Yavuz I compared the effects of RME with a Hyrax screw and the new memory screw.

(1) The upper molar and premolar width continued to increase slightly in the (Hyrax screw / memory screw) group, probably due to the continued action of the NiTi spring.

(2) As results of this study, (no significant / significant) differences were seen between Hyrax and memory screw groups at the end of the retention period.

문제 2: Peng Y et al. evaluated the effectiveness of showing orthodontic patients images illustrating severe consequences of biofilm formation versus using biofilm disclosing tablets.

(1) The group that received only the biofilm disclosure tablets (had / did not have) better scores than the controls.

(2) Showing orthodontic patients images illustrating the severe consequences of biofilm formation is (less / more) effective than using biofilm disclosing tablets.

2015년 06월 12일 QUIZ   

문제 1:Yilmaz HG and Bayindir H found that (   ) laser irradiation showed the best results for the decrease in VAS scores of dentine hypersensitivity. And it is related that the reduction in number/patency of (   ) in the SEM findings.

문제 2

(1) Increased surgical insults produce (greater/ less) dense and (greater/ less) mature bone.

(2) Relative to the control bone, bone on the insult+ side showed no differences in bone (        ).

문제 3:Ni-Ti closed-coil springs do not deliver constant forces when used intraorally, (O, X) and they do not allow for space-closure rates of approximately 1 mm per month. (O, X)

2015년 06월 19일 QUIZ   

문제 1:Doctors from Canada and the USA compared treatment outcomes of 2 mandibular advancement appliances (KlearwayTM and TAP3) in the OSA patients.

(1) There were (no, significant) differences in the treatment outcomes between the 2 appliances.

(2)Patients preferred (KlearwayTM, TAP3) appliance.

문제 2:A longitudinal study about anterior facial heights of children from 6 to 14 years reported that long-faced children usually have longer (upper, lower, total) facial heights compared with short-faced and normal-faced children.

2015년 06월 26일 QUIZ   

문제 1:The wider the bracket on a tooth, the (smaller, greater) the interbracket span between adjacent teeth. Therefore, the narrow brackets have an advantage when teeth are malaligned because the (smaller, greater)  interbracket span gives (more, less) springiness.

문제 2:According to the research by Virginia Commonwealth University, parents of orthodontic patients preferred dentists with well-groomed hair, (formal, casual) dress, and (name tags, hair band, facial jewelry).

2015년 09월 04일 QUIZ   

문제 1:At Still University conducted a study on facebook marketing in orthodontic practice. The respondents indicated that there were key elements of Facebook that would attract their attention and help them to make their decision about where to receive treatment. What was the most important element in their study?

1) an orthodontist’s credentials

2) before-and-after photographs

3) consumer-focused content

4) the orthodontist’s photograph

문제 2:Yonsei University evaluated effect of ext/non-ext treatment on lower second molar angulation on orthodontic treatment.

(1) Compared to the extraction group, the lower second molars of patients treated without extractions are more often (mesially, distally) angulated

(2) The (mesial, distal) angulation of lower second molars has the potential to increase the impaction of third molars and to render subsequent third molar extraction more dificult.  

2015년 09월 11일 QUIZ   

문제 1:University of Texas conducted a study on treatment effects of the Carrière Distalizer

(1) The appliance offers a comprehensive design made of a stainless steel arm that extends from the (canine, molar) pad on the mesial end to a posterior end enclosing of a ball-and-socket joint attached to the (canine, molar) pad

(2) The (maxillary, mandibular) molar was distalized between 1.6 and 2.8 mm. Successful correction of (Class II, Class III

(3) However, adverse effects are common with Class II elastics, such as (protraction, retraction) of the lower dentition and (increased, decreased) mandibular inclination

2015년 09월 18일 QUIZ   

문제 1:Tubingen University conducted a study on microelectronic wear-time documentation. TheraMon microelectronic system was embedded in the removable appliance.

(1) The 281 study participants wore their removable appliances for a median of (9, 11, 13) hours per day, compared with the 12 to 15 hours per day prescribed.

(2) (72, 82, 92) percent of the patients did not adhere to the prescribed wear time of 12 to 15 hours per day.

문제 2:Yonsei University conducted a study on the posterior anatomic limit for mandibular molar distalization.

(1) The posterior anatomic limit for mandibular molar distalization was the (labial, lingual) cortex of the mandibular body and not the anterior border of ramus.

(2) The posterior available space for molar distalization was significantly smaller at the (crown, root) level than at the (crown, root) level.

2015년 09월 25일 QUIZ   

문제 1:Ceramic brackets are used for improved esthetics in fixed orthodontic treatment.

(1) Ceramic brackets are (harder, softer) than the stainless steel bracket.

(2) Ceramic brackets have a much (lower, higher) fracture resistance, making them very brittle.

(3) Monocrystalline products are (more, less) brittle than polycrystalline.  

문제 2:Aarhus University conducted a study on the donor site morbidity after reconstruction of alveolar bone defects with mandibular symphyseal bone grafts in cleft patients.

(1) Donor site morbidity in relation to bone harvesting from the anterior iliac crest includes (         ), (          ), sensory disturbances, disturbances of gait, and hernia through the donor site.

(2) The grafts harvested from the mandibular symphysis for the repair of alveolar defects is a predictable procedure, and well received by the patients. There is a small risk of (          ) disturbances in donor area.

2015년 11월 13일 QUIZ   

문제 1:Children who are bullied by siblings several times a week are (    ) as likely to be diagnosed with depression, self-harm history, or anxiety compared to non-bullied controls.

Half, same, twice, triple   

문제 2:Collins B et al. suggested that the prevalence of body dysmorphic disorder, depression, anxiety, and obsessive-compulsive disorder is (low / high) in orthognathic surgery patients. A (week / strong) correlation was found between patients with body dysmorphic disorder and those with depression, anxiety, and obsessive-compulsive disorder. And (5 / 15 / 25) % of the orthognathic surgery patients in their study were diagnosed with body dysmorphic disorder.

문제 3:There is a high prevalence of dental erosion in Swedish young adults, (O , X) the incidence of severe erosion is low. (O , X)

2015년 11월 20일 QUIZ   

문제 1:Pithon MM, et al reported whether dental esthetics would have an influence on the perceptions of persons responsible for hiring people for their company.

(1) People with ideal smiles were considered more (         ) and as having a greater chance of finding a job compared with persons with non-ideal smiles.

(2) For the characteristics of (         ) and efficiency, no significant differences were observed in the evaluations between those with ideal and non-ideal smiles.

문제 2:Marini I, et al evaluated the effects on plaque index (PI) scores of manual or electric toothbrush with or without repeated oral hygiene instructions (OHI) and motivation on patients wearing fixed orthodontic appliances.

(1) The manual toothbrush group and the electric toothbrush group with OHI and motivation at the start of treatment and at 4, 8, 12, 16, and 20 weeks had significantly (lower / higher) PI scores than did the initial OHI-only groups.

(2) The type of toothbrush used (did / did not) significantly influence the PI score.

2015년 11월 27일 QUIZ   

문제 1:(1) The GAC light nickel-titanium coil had the (highest / lowest) mechanical and thermal hysteresis, whereas the 3M medium nickel-titanium closed coil had the (highest / lowest) mechanical and thermal hysteresis.

(2) These results indicate that the GAC light closed coil (exerted / did not exert) a constant force.

문제 2:De-Marchi LM, et al evaluated the smile attractiveness of patients with maxillary lateral incisor agenesis who were treated with space closure and space opening as compared with individuals with a complete dentition.

(1) A (                ) was used to assess smile attractiveness for each subject.

(2) Patients with space closure and teeth recontouring were significantly (less / more) satisfied than were controls.

2015년 12월 04일 QUIZ   

문제 1:Villa MP, et al evaluated the outcome of adenotonsillectomy (AT) and rapid maxillary expansion (RME) treatment in children with sleep-disordered breathing.

(1) AT treatment showed significant improvement of OSA symptoms and (increase / decrease) in apnea-hypopnea index (AHI).

(2) RME treatment resulted in (increase / decrease) in AHI to 2.6.

문제 2:Fekonja J, et al assessed if hypodontia is associated with an increased incidence of epithelial ovarian cancer (EOC).

(1) The EOC patients were 2.87 times (more / less) likely to have hypodontia than were the normal subjects.

(2) The most frequently missing teeth for women with EOC were upper (                 ). Upper lateral incisors were more frequently missing in the control group.

2015년 12월 11일 QUIZ   

문제 1:Shpack N, et al evaluated the effectiveness of maxillary first molar distalization with a cervical pull facebow headgear prior to and after the eruption of the maxillary second molars.

The tightness of the dental contact point (TDCP) (decreased / increased) and space (decreased / increased) with increase in initial headgear force.

문제 2:Levin RP described ways to inspire your office team.

The best way to inspire staff members is to make them realize that they are an important part of (           ) than themselves.

2015년 12월 18일 QUIZ   

Complete the sentences using the following words:
Bulimia nervosa, Body dysmorphic disorder, motivation, expectation

문제 1:(                  ) is a psychiatric disorder in which an individual is preoccupied with one or more perceived defects in physical appearance which are unnoticed or appear minor to others.

문제 2:Orthodontists should take a full history and ensure that a patient’s (                  ) is fully and realistically expressed.

2016년 1월 8일 QUIZ   

문제 1:*  Fill in the blank.

(                            ) lesions are defined as an occlusal surface with no radiographic evidence of caries, but caries is suspected because of clinical appearance.

2016년 1월 15일 QUIZ   

문제 1:(                            ), also called lithotripsy, has been previously used to treat kidney stones and has recently been shown to improve wound healing by promoting osteogenesis and revascularization.

2016년 1월 29일 QUIZ   

문제 1:Researchers from Chile evaluated the tonic EMG activity of the temporalis and masseter muscles following placement of the tongue either on the palate or in the floor of the mouth during swallowing and maximal clenching.

In a clinical trial, temporalis and masseter muscle activities were lowered during clenching when the tongue was positioned (on the palate, in the floor of the mouth).

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.