Variations in the sequence of emergence of canines and premolars: relation to dental arch anatomy and impact on clinical decisions and outcome

الموضوعات

طب

الملخص

Sequence of emergence of teeth is important for treatment timing and success. Variations in eruption sequence have been reported in the literature, especially between the permanent canine (3) and second premolar (5) in the maxilla, and the permanent canine (3) and first premolar (4) in the mandible. Hypothesis: Variations in the emergence sequence specifically when 5 erupts before 3 in the maxilla and when 4 erupts before 3 in the mandible is related to crowding within the arch. Aim: to determine the relation between space availability (Arch Circumference Discrepancy) within the arch and the sequences of emergence of 3-5 in the maxilla and 3-4 in the mandible. Materials and Methods: This is a retrospective blinded study conducted on the pretreatment records of 235 patients (98 boys, 137 girls; ages: 11.39 and 11.20 years) treated at the Division of Orthodontics and Dentofacial Orthopedics Clinic at the American University of Beirut Medical Center. Patients included in the study had at least one of the following teeth in active process of eruption: maxillary 3 and 5 and-or mandibular 3 and 4. Patients with missing teeth, previous orthodontic treatment and-or craniofacial anomalies were excluded. Evaluation of pretreatment records included: (a) dental cast to record sequence of eruption: Seq1 (3-5) or Seq2 (5-3) in the maxilla and Seq3 (3-4) or Seq4 (4-3) in the mandible; ACD; total, anterior and posterior arch length; arch width at the level of the inter-molar and inter-canine distances; and dental emergence age, (b) panoramic radiograph to assess dental formation, (c) lateral cephalogram to evaluate the sagittal jaw relationships and inclination of maxillary and mandibular incisors, (d) hand wrist radiograph to assess the bone age of the subjects and determine its concordance with chronologic and dental ages. Results: More crowding occurred with Seq2 than Seq1 in the maxilla, but there was not statistically significant difference (SSD). In the mandible, more space was available for Seq3 than Seq4 an

روابط وملفات

التعريف والنوع

رقم الوثيقة

0ccba47a-9e45-4f71-b5a5-5ddb3fe68fee

رقم العقد

0

نوع الوسائط

Crawler

نوع المحتوى

الرسائل العلمية

صيغة المصدر

رسائل ماجيستير

نوع الملف

pdf text

أسماء الملفات

1635951_1.pdf

بيانات النشر

ألقاب المؤلفين

[{"name_ar":" Katherine Brigytte Perez Castellano ","title_ar":"اعداد","title_en":"Preparation"},{"name_ar":"Nayef Saadeh ","title_ar":"اشراف","title_en":"Supervision"}]

اللغة

English

المصدر والدورية

اسم المصدر

Variations in the sequence of emergence of canines and premolars: relation to dental arch anatomy and impact on clinical decisions and outcome

المحتوى والصفحات

عدد الصفحات

0

إشراف وإعداد

الإشراف

Nayef Saadeh

الإعداد

Katherine Brigytte Perez Castellano

الاقتباسات الببليوغرافية