Permanent Maxillary and Mandibular Incisors

Grawish, Mohammed E.; Grawish, Lamyaa M.; Grawish, Hala M.

doi:10.5772/intechopen.69542

Cited by 5 publications

(3 citation statements)

References 7 publications

(14 reference statements)

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“…The four front teeth in the upper and lower jaws are called incisors. The central incisors are the two incisors on either side of the midline, while the lateral incisors are the teeth next to the central incisors [12] . The condition of the problem based on the British Standard Institute (BSI) also categorizes the classes into Class I, Class II/1, Class II/2 and Class III, as shown in Table 1 and Figure 1.…”

Section: Categories Of Malocclusionmentioning

confidence: 99%

Incisor Malocclusion Using Cut-out Method and Convolutional Neural Network

Harun¹,

Samah²,

Shabuli³

et al. 2022

Prog Micobes Mol Biol

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Malocclusion is a condition of misaligned teeth or irregular occlusion of the upper and lower jaws. This condition leads to poor performance of vital functions such as chewing. A common procedure in orthodontic treatment for malocclusion is a conventional diagnostic procedure where a dental health professional takes dental x-rays to examine the teeth to diagnose malocclusion. However, the manual orthodontic diagnostic procedure by dental experts to identify malocclusion is time-consuming and vulnerable to expert bias that results in delayed treatment completion time. Recently, artificial intelligence technology in imageprocessing has gained attention in orthodontics treatment, accelerating the diagnosis and treatment process. However, several issues concerning the dental images as input of the classification model may affect the accuracy of the classification. In addition, unstructured images with varying sizes and the problem of a machine learning algorithm that does not focus on the region of interest (ROI) for incisor features bring challenges in delivering the treatment. This study has developed a malocclusion classification model using the cut-out method and Convolutional Neural Network (CNN). The cut-out method restructures the input images by standardising the sizes and highlighting the incisor sections of the images which assisted the CNN in accurately classifying the malocclusion. From the results, the implementation of the cut-out method generates higher accuracy across all classes of malocclusion compared to the non-implementation of the cut-out method.

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Section: Categories Of Malocclusionmentioning

confidence: 99%

Incisor Malocclusion Using Cut-out Method and Convolutional Neural Network

Harun¹,

Samah²,

Shabuli³

et al. 2022

Prog Micobes Mol Biol

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“…As compared to the lateral incisors they form as the result from four lobes, three labially, and one lingually (palatally), the lingual (palatal) lobe being represented by the cingulum [7]. The number and prominence of mamelons are variable in maxillary and mandibular teeth [8]. Mamelons are absent on the primary dentition, therefore, they help to differentiate between primary and permanent dentition [5] and may help with the incisal edge in certain systematic diseases such as the manifestation of Hutchinson's, incisors teeth which are characteristic of syphilis [9], and macrodontia of upper incisors generally a final diagnosis of KBG syndrome [10].…”

Section: Introductionmentioning

confidence: 99%

Frequency of Mamelons in Relation to Age, Gender and Occlusion among the Saudi Population

Alalowi

Al-Jhany

2020

AJFSFM

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كان الهدف من هذه الدراسة القائمة على الملاحظة هو تحديد مدى الانتشار وتحديد وجود حلمة الأسنان Mamelons وارتباطها في نفس الوقت بالعمر والجنس وعلاقة العض عند الأشخاص.وشمل حجم العينة الإجمالي 518 مريضاً من الذكور والإناث. تم اختيار المشاركين في الدراسة بأخذ عينات عشوائية منهجية باستخدام موقع randomizer.org. وتم الفحص السريري وكذلك الكشف عن وجود حلمات الأسنان على كل من الفكين العلوي والسفلي وعلاقتها بالأسنان الأمامية ووجود العضة المفتوحة مثلاً، ووجود التلامس الوظيفي للأسنان أو عدمه من قبل أفراد مدربين، حيث تم إجراؤه باستخدام مرآة الفم، وقفازات اللاتكس، ومسبار الأسنان، وضوء كرسي الأسنان.شارك في هذه الدراسة عدد 256 (49.4%) من الذكور و262 (50.5%) من الإناث. ولوحظ أن وجود حلمات الأسنان كان أكثر انتشاراً بين الإناث (84.7%) مقارنة بالذكور (79.3%). خلال العقد الأول من الحياة، كانت نسبة حلمات الأسنان أعلى، بغض النظر عن الجنس. ومع ذلك، فإن مدى انتشار أو نسبة وجود حلمات الأسنان تبدأ في الانخفاض مع تقدم العمر. وتكون حلمات الأسنان أكثر انتشارًا في الأشخاص الذين لديهم إطباق العضة المفتوح (90.0%)، يليه الإطباق غير الوظيفي للعضة بنسبة 81.7% (علاقة الحافة على الحافة)، ومن ثم الإغلاق الوظيفي للأسنان، على سبيل المثال كان 75.5%.استمرار وجود حلمات الأسنان في أي من الجنسين كان أعلى حتى سن 25 عامًا، وبعد ذلك ينخفض بشكل كبير. بالإضافة إلى ذلك، تظهر حلمات الأسنان في القواطع الفكية العلوية أكثر من القواطع في الفك السفلي.

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“…Among the most challenging aspect of complete denture construction is the proper selection of maxillary anterior teeth [5] . The central incisor forms the spearhead of the anterior teeth, where the teeth width is more fundamental than the length [6] . It is the prosthodontist who comes into play and the only one to correlate and evaluate the biomechanical information so that the selection of artificial teeth will meet the individual needs.…”

Section: Introductionmentioning

confidence: 99%

Evaluate the Association between the Interpterygomaxillary Notch and the Width of Maxillary Anterior Teeth

Sowmya¹,

Roy²,

N³

2020

IJPHRD

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Aim: Among the most challenging aspect of complete denture construction is the proper selection of maxillary anterior teeth. The main objective of this study was to examine the relationship between the total mesiodistal width of the six maxillary anterior teeth and the interpterygomaxillary notch distance. Materials and Methods:One hundred maxillary impressions were taken on subjects using irreversible hydrocolloid impression material and stock trays. The distance between two pterygomaxillary notches was measured on a straight line using a digital caliper with a 0.01-mm precision level. For each cast, the maximum coronal widths of each of the maxillary anterior six teeth were measured with a caliper. The results were analyzed using correlation regression tests. Results:The mean mesiodistal width of the six maxillary anterior teeth was 52.97 (+2.29) mm, and the mean distance of the interpterygomaxillary notch was 44.28 (+ 3.29) mm. The corelation and regression tests showed that there was a stastically significant positive corelation (p=0.001), Pearson coefficient = 0.498 between the interpterygomaxillary notch distance and total mesiodistal width of the six maxillary anterior teeth. Conclusion:The majority of cases showed a significant relationship between the interpterygomaxillary notch distance and total mesiodistal width of the six maxillary anterior teeth. Though other parameters should also be considered to analyze and compare other morphological structures to improve the aesthetic requirement for the conventional denture wearer.

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Permanent Maxillary and Mandibular Incisors

Cited by 5 publications

References 7 publications

Incisor Malocclusion Using Cut-out Method and Convolutional Neural Network

Incisor Malocclusion Using Cut-out Method and Convolutional Neural Network

Frequency of Mamelons in Relation to Age, Gender and Occlusion among the Saudi Population

Evaluate the Association between the Interpterygomaxillary Notch and the Width of Maxillary Anterior Teeth

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