풀어봅시다!!!  

2014년 03월 07일 QUIZ   

문제 1: Dr. Van Haywood gave a guest lecture on bleaching in orthodontic patients.

(1) The 10% carbamide peroxide is much better than the hydrogen peroxide because of (shorter, longer) activity time and PH-(descending, elevating) effect.
(2) Tray bleaching with 10% carbamide peroxide has the additional effect of removing (       ) from teeth and elevating the (    ) of the mouth resulting in caries control.
(3) If bleaching is performed before bonding, the residual oxygen in the tooth (increases, reduces) the bond strengths. Therefore, patients should wait at least (1, 2) week(s) after bleaching before the bonding the brackets.
 (4) Once the bonding has been polymerized, bleaching over the bonding will (decrease, increase) the bonding strength of the brackets.

문제 2: According to the CBCT study by Kagoshima University,
RME results in a (lower, higher) tongue posture.

2014년 03월 14일 QUIZ   

문제 1: The University of Hong Kong conducted a study on effectiveness of diode laser gingivectomy in orthodontic patients.

(1) Adolescent patients who have poor (      ) (        ) will develop gingival overgrowth.
(2) Typical treatment for this problem is root planning and scaling plus prophylaxes and (      ) (        ) instruction.
(3) Addition of laser gingivectomy created (less, more) improvement in periodontal health.

문제 2: San Lui Potosi University evaluated shear bond strength of bonded molar tubes on fluorotic molars.

(1) Overetching (from 15 to 150 seconds) improved the shear bond strength in the (moderate, severe) fluorosis, but not the (moderate, severe) fluorosis.
(2) Microabrasion for 5 seconds followed by etching produced a uniform (negative, positive) change for both moderate and severe fluorosis.

2014년 03월 21일 QUIZ   

문제 1: The UNC evaluated a relationship between BMI and skeletal maturation and dental development in orthodontic patients.

(1) Skeletal maturity was determined using the CVM stage. Here, what stands for CVM?
(2) With an increased BMI, there was a/an (decrease, increase) in dental age.
(3) With an increased BMI, there was a/an (decrease, increase) in skeletal age.

문제 2: Describe the full name of following abbreviations.

(1) OSA
(2) AHI
(3) ESS
(4) BSSO

2014년 03월 28일 QUIZ  

문제 1: According to the Class II elastics effect by Janson G, Sathler R, et al.,

(1) In short term, the Herbst appliance achieved (greater, less) skeletal changes then did Class II elastics.
(2) Class II elastics are effective in correcting Class II malocclusions, and their effects are mainly (skeletal, dentoalveolar).

문제 2: According to the role of phychosocial factors by Joury E, Marcenes W, Johal A,

(1) Adolescents with (high, low) levels of maternal support were more likely to achieve a high improvement in occlusion compared with their counterparts with (high, low) levels of maternal support.
(2) Adolescents with (high, low) levels of daily hassles were less  likely to achieve a high improvement in occlusion compared with their counterparts with (high, low) levels of daily haassles.

2014년 04월 04일 QUIZ  

문제 1: According to self-ligating brackets by Bertl MH et al.,

(1) the pain experienced on the self-ligating bracket (SmartClip)  side was much (      ) significant than the pain experience on the conventional bracket side.

(2) engagement and disengagement of rectangular SS, TMA, and CoCr archwires caused (less/more) pain on SmartClip side.

문제 2: According to gingival recession by Anne Marie rankema et al.,
Five years after treatment, recession was seen in 9% retroclined, (   )% of the stable inclination patients, and (   )% of the proclined incisor patients.

2014년 04월 11일 QUIZ  

문제 1: According to the effects of mandibular distraction osteogenesis on airway anatomy by Abramson ZR, et al.,

(1) after mandibular advancement by DO for congenital mandibular micrognathism, the upper airway (decreases, increases) in size, (decreases, increases) in length, and becomes more spherical.

문제 2: According to the information-seeking behavior by Stephens R , et al.,

(1) The preferred modes of information provision were (written, audiovisual, verbal)

(2) (Fewer, More) patients than expected had sought information from the Internet, even though many of them (64%) used the Internet every day.

2014년 04월 18일 QUIZ  

문제 1: According to the gingival recession in patients with cleft lip and palate by Ahu S and Chen Z,

(1) In all the patients that experienced (increased, decreased) recession, the maxillary central incisors moved labially.

(2) For every 2° of increase in the upper incisor to SN angle, there was a (   ) times greater likelihood for gingival recession

문제 2: According to the autotransplantation surgical planning with CBCT by Shahbazian M, et al.,

CBCT-based surgical planning for autotransplantations can (reduce, waste) surgical time and may lead to (lower, higher) success rates.

2014년 06월 13일 QUIZ  

문제 1: Dentists may provide (conservative / invasive) and (reversible / irreversible) treatments that will be successful for most TMDs and in doing so comply with the profession’s code of ethics.

문제 2: The use of a chlorohexidine varnish significantly reduces S. mutans counts in orthodontic patients for up to (  ) weeks.      2,   4,   6,   8

문제 3: Patients undergoing fixed orthodontic treatment have a significantly (higher / lower) number of interproximal caries compared to a similar untreated control group.

2014년 06월 20일 QUIZ  

문제 1: People
 1) Get out of the office and circulate among the troops.
  • Frank communication  
  • Avoid issuing orders and instead (     ), imply.
   Ex) A. Helen! Do that!
B. Helen! You know it would be nice if you would be able to do this or that.
 2) Build strong alliances

2. Character
 1) Honesty and integrity are the best policies.
 2) Never act out of vengeance or spirit.
   • Revenge makes enemy.
 3) Have the courage to handle unjust criticism.
  • Don’t let unjust criticism go too long.

3. Endeavor
 1) Exercise a strong hand - Be decisive!
   • Make a decision
 2) Lead by being led
 3) Set goals and be results oriented.
 4) Keep searching for your ‘Grant’.
  • The story of General Ulysses Grant.

4. Communication
 1) Preach a vision and continually reaffirm it.
  • Art & Science
   Ex) Steve jobs, Michelangelo
  • The wakes we are leaving is a contribution to the community.

2014년 07월 04일 QUIZ  

문제 1: Researchers from Slovenia assessed the dgree of facial asymmetry associated with subjects with unilateral functional crossbite in the three stages of dentition (primary dentition, earlyand late mixed dentition).

According to the cross-section study,
 ①Asymmetry of mandible was prominent at all dentition stages.
 ②Asymmetry of maxilla was apparent after the primary dentition and in the early     mixed dentition.
 ③Unilateral functional crossbite causes facial asymmetry of the mandible
 ④All of above

문제 2: (a) is the primary cytokeratin of stratified epithelia. Normal gingival epithelium displays a intense, uniform (a) expression.

Caspase-3 is the most downstream caspase in the (b) inducing protease pathway and is associated with cell death.

2014년 07월 11일 QUIZ  

문제 1: According to the ‘Case Report’ about canine-extraction treatment, (JCO 2013; 47(6):353-60)

Special considerations must be given to orthodontic mechanics.  ① Accentuating the ( labial ) root torque of the upper first premolars will      simulate canine prominence.
 ② ( Lateral disclusion ) must be established in group function to prevent       overloading the first premolars.
 ③ Adjusting the initial contacts on the first premolars during lateral function      may help produce an ideal disclusion.

2014년 09월 12일 QUIZ  

문제 1: Leuven University conducted a study regarding pre-surgical treatment planning of maxillary canine impactions using panoramic vs cone beam CT imaging.  

(1) Evaluators were able to better evaluate canine position, contact with the lateral incisors, and incisor root resorption when using CBCT image.

(2) Evaluators had (higher, lower) confidence in their treatment plan when using CBCT image.

(3) (More, Fewer) treatment plans were made to extract the impacted canine when using CBCT image.

문제 2: University of Otago evaluated he perceived level of improvement in facial attractiveness as assessed by people with different backgrounds in skeletal Class II patients treated by mandibular advancement. Three groups of evaluators were composed of orthodontists, art students, and laypersons.

(1) A 100-mm (                ) was used for the evaluation.

(2) Art students tended to perceive the (most, least) improvement in attractiveness, while orthodontists perceived the (most, least) improvement in esthetics after surgery.

(3) The differences were significant in (overall face,

2014년 09월 19일 QUIZ  

문제 1: How can I become more efficient as a dentist?

(1) According to Dr Levin, the best way for dentists to become more efficient is to (        ) all nonclinical tasks to the appropriate team members.

(2) There are three tools that can help staff members learn new skills; (      ) job descriptions, systems (      ), and system (         ).

문제 2: University of Gothenburg evaluated the prevalence of orthodontically induced root resorption using cone-beam CT, in one hundred fifty-six patients treated with fixed appliances and extraction of four premolars.

(1) Severe root resorption, less than 2 mm, was found in ( 5, 10, 15, 20, 25 ) % of the patients at the end of treatment.

(2) There was (significant, no significant) correlation between treatment duration and the severity of root resorption after treatment.

2014년 09월 26일 QUIZ  

문제 1: University of Sao Paulo evaluated dentoskeletal changes induced by the Jasper jumper and the activator-headgear combination appliances followed by fixed orthodontic treatment. The effects were similar in Class II malocclusion treatment. Their main effects are the following.

(1) A restrictive effect on the (maxilla, mandible).

(2) Retrusion of the (maxillary, mandibular) incisors.

(3) Distalization of the (maxillary, mandibular) molars.

(4) Protrusion of the (maxillary, mandibular) incisors.

(5) Extrusion of the (maxillary, mandibular) molars in both groups

문제 2: University of Sao Paulo evaluated the prevalence of enamel defects in permanent teeth of patients with complete cleft lip and palate. A high prevalence of enamel defects was noted in upper anterior teeth in patients with cleft lip and palate in permanent dentition.

(1) The most prevalent enamel defect is (hypoplasia, diffuse opacity, demarcated opacity)

(2) The most affected teeth are the upper (central, lateral) incisors.

(3) The highest prevalence of defects is located at the (buccal, distal, mesial, lingual) surface and at the middle and incisal thirds.

(4) Enamel defects are more common in the (cleft, non-cleft) side.

2014년 10월 10일 QUIZ  

문제 1: Autism- Debunking the Myths, Summarizing the Diagnostic Types
1. What is autism?
• Autism is neurodevelopmental disorder, characterized by severe impairment of social interaction, impairment of language, behavior and cognitive functions.
• ASD (Autism Spectrum Disorder) 

2. History
(1) The word autism comes from the Greek word ‘autos’ meaning (        ).

1911: Eugen Bleuler coined the term ‘autism’ to describe a specific aspect of schizophrenia.
1940: Hans Asperger
      Bruno Bettelheim
1969: Bernard Rimland
        “Autism is not emotional illness, but biological disorder”
DSM (Diagnostic and Statistical Manual of Mental Illness)

2014년 10월 17일 QUIZ  

문제 1: Researchers from Germany conducted a study about influence of lead apron shielding on absorbed doses from panoramic radiography.

(1) They used a device to evaluate the doses absorbed in a full body phantom during exposure. What is this device? (        )

(2) The results of this study showed that (no, significant) reduction in absorbed dose was found with apron shielding during panoramic radiography.

2014년 10월 24일 QUIZ  

문제 1: Dr. Levin suggests that it is critical to be able to reduce the percentage of

(1) (         ) in your practice to maintain quality care. The first step is to distinguish between (2) (        ) and variable expenses. He also suggests that you list all categories and review them line by line.  

2014년 11월 07일 QUIZ  

문제 1: Researchers from Sweden investigated the association between self-perceived oral health and history of abuse.

(1) Respondents reporting a history of physical abuse, intimate partner violence, or bullying were 2 to 15 times more likely to report (good, poor) oral health.   
(2) The results of this study strengthen that (dental professionals, school teachers) are an important resource in child protection.

2014년 11월 21일 QUIZ  

Autism-Helpful Tips for Clinical Management

문제 1: Epidemiology of ASD (Autism Spectrum Disorders)
Classic autism : 10 to 20 children per 10000 birth
Autism Spectrum Disorder : 30 to 50 children per 10000 birth
(1) Occurrence rate in Males is (                ) than in Females

ㆍ  Prevalence is higher today than the past
- environmental toxins
- Thimerosal founded in vaccine

ㆍ  Causes of Autism – unknown
Genetic : occur in parents or siblings of people with Autism
MRI studies : abnormalities in the structure and/or function of limbic system
- Limbic system : emotional and social behavior

ㆍ  Treatments for Autism
Comprehensive approach : speech therapy, occupational therapy,
                                            social skills training, special education
Medications

문제 2: Orthodontic treatment for ASD

1) Away treatment at (1) (       ) times of day
2) Treat in a semi-private room if possible
3) Assess the patient to find motor skills
4) (2) (           ) the treatment chair prior to sitting the patient to avoid sudden
    movement
5) Avoid use to noising headpieces until the patient become acclimated to
    your clinic
6) Use noise cancelling headphones with necessary
7) Find the same chair side assistant to see the patient in each visit
8) If extraction of teeth is necessary, refer the patient to oral surgeon to avoid
    creating connection between the extraction procedure and orthodontic
    visits
9) Prepare the patient or the parent by explaining the all of these
10) Suggest that the patient bring a security item if necessary such as a
      favorite toy

2014년 11월 28일 QUIZ  

문제 1: According to long term stability of incisor intrusion by Varlik SK et al.,

Using mandibular intrusion with utility arches in adults is a relatively (       ) procedure long term.

문제 2: According to mandibular alveolar levels in Class III surgical patients by Coscia G et al.,

(1) The mean alveolar bone thickness from T0 to T1 (        ) labially at the midroot and apex levels. (T0, before treatment; T1, completion of presurgical orthodontic treatment)
(2) There is (significant / no significant) vertical loss of alveolar bone from T0 to T1.

2014년 12월 05일 QUIZ  

문제 1: According to effectiveness of isolated anterior tongue spur therapy by Meyer-Marcotty P et al.,

treatment with fixed palatal spurs produced distinctive morphological changes in the dental arches

1) An (increase/decrese) of overjet and overbite
2) uprighting of the (      ) incisors
3) (        ) of maxillary and mandibular alveolar heights 

문제 2: According to positive leader by Levin RP,

dentists can take the following steps

1) find a way to be “on” each day
2) create (               ) through positive leadership
3) lead by example
4) motivate others

2014년 12월 26일 QUIZ  

문제 1: Carrillo R, Buschang PH provide reliable clinical tips to increase success rates when placing miniscrews;

1) “___________” insertion technique
2) “___________” insertion technique

문제 2: According to effect of smoking cessation on periodontal health by Fiorini T et al.,

1) Smokers had a progression of clinical attachment loss over 3 mm that was approximately (    ) times higher than quitters.
2) Among patients receiving nonsurgical periodontal treatment, (smokers/quitters) were more likely to have periodontal probing depth reductions than were (smokers/quitters).

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.