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Register a new userThe Effect of linear and angular dental Measurements on mandibular anterior crowding in the early stage of mixed dentition
تأثير القياسات السنية الخطية و الزاوية على الازدحام الأمامي في الفك السفلي في المرحلة المبكرة من الإسنان المختلط
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إن الأشخاص ذوي الازدحام السني هم الأكثر ترددا" إلى العيادة التقويمية لذلك من المفيد معرفة العوامل المساهمة في الازدحام السني من أجل وضع خطة المعالجة و انجاز الاستقرار و التثبيت . هدف البحث هو دراسة تأثير حجوم الأسنان و القياسات السنية الخطية و الزاوية على الازدحام الأمامي في الفك السفلي في المرحلة المبكرة من الإسنان المختلط .
Individuals with dental crowding are the most frequent patients in the orthodontic clinic. Therefore, it is useful to know the contributing factors of dental crowding for planning of orthodontic treatment and achieving stability and retention. The aim the study. Was studying effect of teeth sizes and linear and angular dental Measurements on mandibular anterior crowding in the early stage of mixed dentition.
References used
Shigenobu N, Hisano M, Shima S, Matsubara N, Soma K, 2007- Patterns of Dental Crowding in the Lower Arch and Contributing Factors. Angle orthodontist. vol. 77: 303-310
Wellens H, 2007- A clinical-experimental simulation of changes in inter canine width associated with the correction of crowding: a pilot study. European Journal of Orthodontics. 29: 632-638
Turkkahraman H, Sayin Om, 2004- Relationship between mandbular anterior crowding and lateral dentofacial morphology in the early mixed dentition. Angle Orthodontist. 74: 759-764
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Lower incisor crowding ( L.I.C ) is identified as the
discrepancy between mesiodistal tooth widths of four permanent
incisors and available space in the alveolar process. However,
incisor crowding is not merely a tooth-arch size discrepancy. Many
factors such as incisor inclination can be affect crowding
development.
the aim of search. Was studying effect of mandibular anterior
crowding on maxillary and mandibular incisor position in the early
mixed dentition.
Many factors such as direction of mandibular growth, early loss of
deciduous molars, the effect of maxillary and mandibular lengths
and incisor and molar inclination can be associated with crowding.
The aim of study to evaluate the effect of mandibular anterior
crowding on maxillary and mandibular base lengths and ANB
angle in the early mixed dentition .
Arch length preservation, and maintenance of the leeway space in the mixed dentition can often provide an adequate space to resolve lower incisor crowding. Yet, the frequency of this occurrence is not known. To obtain this information, lingual arches
were placed in the mandibular arches of 107 consecutive mixed dentition patients with incisor crowding to preserve arch length and make the leeway space available to resolve the crowding. Arch length decreased by only 0.44mm, whereas the intercanine, interpremolar, and intermolar dimensions increased by0.72-2.27mm. There was an adequate space to resolve the crowding in 65 out of 107 patients(60%). If perfect arch length preservation occurred, there would bean adequate space to resolve the crowding in 73 out of 107 patients(68%)
This study was carried out aiming to investigate the accuracy of
measurements , differences in linear and angular measurements of
the craniofacial complex using both the two and three dimensional
method of measuring in patients with different kind
s of
malocclusion ; and also to compare each kind of malocclusion to
the others. The sample of the study consisted of 40 patients ,
divided into three groups – a group for each skeletal malocclusion
, Cone Bean Computed Tomography (CBCT) was performed for
each patient , then two dimensional radiographs were derived from
the CBCT ; after performing the measuring , collecting the results
and analyzing them statistically.
The purpose of the present study was to radiologically assess the
hard tissue changes around the immediately loaded implants single
tooth bioactivated with plasma rich in growth factors ,placed in the
mandibular posterior region . Twenty dental im
plants placed in 13
patients had at least single edentulous space in the posterior
region of the mandible using single stage procedure after
bioactivation the implants surfaces with plasma rich in growth
factors.
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