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    • Dr.Ozaibi د.العزيبي
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    NBDE Part 1 – Dental Anatomy: Contact Points and Contour

    6
    By Dr. Mohsen Saeed Ozaibi on November 8, 2013 Featured, NBDE1

    In this article, we give a complete and simpleifed guide to study the contact points and height of contour for dental anatomy section for the NBDE Part 1.

    Contact Points and Contour

    UniversalChartingSystem

    Facts

    • Height of Contour (Crest of Curvature) : is an imaginary line encircling the tooth at the greatest bulge of the tooth.
    • They Form the Contact areas which the adjacent teeth contact each other mesailly and distally.
    • They Protects the surrounding givngiva, maintains hygiene and promote healthy gingiva.
    • They Prevent tooth rotation and medial drift from occurring and keeps the teeth stably positioned.
    • Thus its important to replicate the tooth contour on a dental crown to provide the same function as the natural contour.
    • Natural unworn contacts (help chewing) in the dental arch are
      • point-to-point.
      • point-to-area.
      • edge-to-edge.
      • edge-to-area.
      • Not Natural (may be due to bruxism): When area-to-Area contact occurs it leads to a scarping noise.
    • Cervical Line = CEJ (Cemento-Enamel Junction): is the line that separates the enamel from the cementum in other words separates the Anatomically Crown from the Anatomically Root.
    • The Direction of the Curvature is Towards the Apex on both the Lingual and Labial Side while towards the Occlusal/ Incisor Direction on both mesial and distal sides.
    •  Cervical Line has the Greatest curvature:
      • Upper Centrals have the Greatest Curvature.
      • Mesial Side has Higher curvature than Distal Side.
      • Anterior teeth > Premolars > Molars.

    Facial View

    I = Incisor 3rd / M = Middle 3rd / J= Junction between I and M
    I = Incisor 3rd / M = Middle 3rd / J= Junction between I and M
    • All Mesial contacts are more Incisal/Occlusal than the Distal Contact.
    • The more posterior you move the more the contact point is towards the root direction.
    •  Lower centre has both contact points at the same level.Screenshot 2013-11-08 14.34.26

    The contact points are as following

    contact upcontact down


    Occlusal view

    • All Teeth have there contact point Centred Faciolingual ( slightly buccal of the middle 3rd ). middle
    • 2nd premolar / 1st molar / 2nd molar contact point have a straight line that bisects every contact point.

    teeth


    Side View

    Side View ( C= Cervical 3rd / M = Middle 3rd)
    Mesial View ( C= Cervical 3rd / M = Middle 3rd)
    • On the Facial side: height of contour of all teeth is at the Cervical 3rd.
    • On the Lingual side: height of Contour are:
      • Anterior Teeth: Cervical 3rd.
      • Posterior Teeth: Middle Third.


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    Dr. Mohsen Saeed Ozaibi
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    Mohsen Saeed Al Ozaibi, BDS, MBA. A Dentist at Bani Yas Medical Clinic and at Emirates Jordanind Medical Center, Founder of OziDent.com. Graduated in 2009 with a Bachelor's Degree in Dental Science from Misr International University and a Master's degree in Business and Administration from the University of the People. A veteran in digital dental content publishing and marketing.

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‏‎‏General Dentist with experience on a painless root canal and child management under nitrous oxide sedation. 
‏Certificated Life coach 
‏An MBA holder in marketing and founder of the dental educational website OziDent.com
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    ——————————————— سع ———————————————
سعادتكم غايتنا و رضاكم نيتنا 
وصحتكم هدفنا وتعليقاتكم تهمنا 
———————————————
‏‎دكتور محسن سعيد سيف العزيبي
‏‎طبيب أسنان وخبير علاج عصب مريح و خبرة طويلة في علاج الأطفال و في استخدام الغاز الضاحك للاطفال.
مدرب حياة معتمد دولياً.
حاصل علي ماجستير تسويق و تجارة ومؤسس الموقع التعليمي لطب الاسنان OziDent.com
‏Whatsapp: 0562861010
‏Snap: @dr.ozaibi
____________________________________
‏Dr. Mohsen said Saif Al Ozaibi
‏‎‏General Dentist with experience on a painless root canal and child management under nitrous oxide sedation. 
‏Certificated Life coach 
‏An MBA holder in marketing and founder of the dental educational website OziDent.com
‏‎ابوظبي - Abu Dhabi, UAE
‏________ D R . M O H S E N __________
وما توفيقي الا بالله واختموا إعجابكم بـ ( ماشاء الله )
دقة المواعيد مهمة لذلك 
علشان اعطيكم حقكم راعوا وقتكم 
____________________________________
التسويق و التصميم تحت رعاية شركة OziTect 
www.ozitect.com | mail@ozitect.com | @ozitect
____________________________________
#صحة #ياس #طب_الاسنان_الاطفال #طب_الاطفال #طب_الاسنان  #بني_ياس #أسنان #أسنان_طفلك #أسنان_كدز #أسنانك #ابتسامة #بدون_خوف #غاز_ضاحك #تقويم #حشوات #صحة #طب #عيادة_اسنان #ابوظبي 
‏‎‏ #no_pain #bani_yas #dental #medical #smile  #teeth #oziden #dental_pictures #explorer
‎#اكسبلور
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