scholarly journals Using FEM to Assess the Effect of Orthodontic Forces on Affected Periodontium

2021 ◽  
Vol 11 (16) ◽  
pp. 7183
Author(s):  
Ionut Luchian ◽  
Maria-Alexandra Martu ◽  
Monica Tatarciuc ◽  
Mihaela Monica Scutariu ◽  
Nicoleta Ioanid ◽  
...  
Keyword(s):  
Bone Loss ◽  
Alveolar Bone ◽  
Central Incisor ◽  
The Finite Element Method ◽  
Anterior Teeth ◽  
Clinical Scenarios ◽  
Orthodontic Forces ◽  
Periodontal Risk ◽  
Wedge Effect

Orthodontic treatment in patients with no periodontal tissue breakdown vs. horizontal bone loss should be approached with caution even though it can bring significant benefits in terms of periodontal recovery and long-term success. We used the finite element method (FEM) to simulate various clinical scenarios regarding the periodontal involvement: healthy with no horizontal bone loss, moderate periodontal damage (33%) and severe horizontal bone loss (66%). Afterwards, forces of different magnitudes (0.25 N, 1 N, 3 N, and 5 N) were applied in order to observe the behavioral patterns. Through mathematical modeling, we recorded the maximum equivalent stresses (σ ech), the stresses on the direction of force application (σ c) and the displacements produced (f) in the whole tooth–periodontal ligament–alveolar bone complex with various degrees of periodontal damage. The magnitude of lingualization forces in the lower anterior teeth influences primarily the values of equivalent tension, then those of the tensions in the direction in which the force is applied, and lastly those of the displacement of the lower central incisor. However, in the case of the lower lateral incisor, it influences primarily the values of the tensions in the direction in which the force is applied, then those of equivalent tensions, and lastly those of displacement. Anatomical particularities should also be considered since they may contribute to increased periodontal risk in case of lingualization of the LLI compared to that of the LCI, with a potential emergence of the “wedge effect”. To minimize periodontal hazards, the orthodontic force applied on anterior teeth with affected periodontium should not exceed 1 N.

scholarly journals Permanent maxillary central incisor and first molar rotations in the mixed dentition in repaired complete unilateral cleft lip and palate and their relationship with absence of teeth in their vicinity

2018 ◽  
Vol 88 (5) ◽  
pp. 567-574
Author(s):  
Sunjay Suri ◽  
Suteeta Disthaporn ◽  
Bruce Ross ◽  
Bryan Tompson ◽  
Diogenes Baena ◽  
...  
Keyword(s):  
Bone Grafting ◽  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Alveolar Bone ◽  
Permanent Tooth ◽  
Mixed Dentition ◽  
Central Incisor ◽  
Maxillary Central Incisor ◽  
Anterior Teeth ◽  
Alveolar Bone Grafting

ABSTRACT Objectives: To describe qualitatively and quantitatively the directions and magnitudes of rotations of permanent maxillary central incisors and first molars in the mixed dentition in repaired complete unilateral cleft lip and palate (UCLP) and study their associations with absence of teeth in their vicinity. Materials and Methods: Dental casts and orthodontic records taken prior to orthodontic preparation for alveolar bone grafting of 74 children with repaired UCLP (53 male, 21 female; aged 8.9 ± 1.0 years) were studied. Directions and magnitudes of permanent maxillary central incisor and first molar rotations were recorded. Tooth absence was confirmed from longitudinal radiographic records. Incisor and molar rotations were analyzed in relation to the absence of teeth in their vicinity. Results: Distolabial rotation of the permanent maxillary central incisor was noted in 77.14% on the cleft side, while distopalatal rotation was noted in 82.19% on the noncleft side. Incisor rotation was greater when a permanent tooth was present distal to the cleft side central incisor, in the greater segment. The permanent maxillary first molar showed mesiopalatal rotation, which was greater on the cleft side and when there was absence of one or more teeth in the buccal segment. Conclusions: Presence and absence of teeth were associated with the severity of incisor and molar rotations in UCLP. Crowding of anterior teeth in the greater segment was associated with a greater magnitude of rotation of the cleft side permanent central incisor. Absence of one or more buccal segment teeth was associated with greater magnitude of rotation of the molar.

Reimplantation of Accidentally Avulsed Permanent Maxillary Anterior Teeth in a 10-Year-Old Girl

2017 ◽  
Vol 7 (3) ◽  
pp. 165-169
Author(s):  
Md Abdul Hannan Sheikh
Keyword(s):  
Case Report ◽  
Normal Saline ◽  
Alveolar Bone ◽  
Tooth Avulsion ◽  
Anterior Teeth ◽  
Long Term Prognosis

Accidental tooth avulsion is a grievous injury and common among the children. Management of avulsed tooth within alveolar socket by reimplantation becomes a challenge for the clinician due to extraoral time and media of transportation. Although the long-term prognosis of reimplantation is poor, the time during which the tooth remain within the arch will guide the development of alveolar bone completely. Moreover, reimplantation will maintain anatomical, functional and esthetic rehabilitation of the patient. In this case report, we present a case of accidental avulsion where teeth were gently rinsed of any debris and placed in normal saline during the examination and preparation of the reimplantation sockets. The teeth were then reimplanted, functionally splinted followed by endodontical treatment. After 12 months follow-up the periodontal space was healed perfectly without any resorption or ankylosis.J Enam Med Col 2017; 7(3): 165-169

Long‐term metabolic syndrome is associated with periodontal pockets and alveolar bone loss

2019 ◽  
Vol 46 (8) ◽  
pp. 799-808 ◽  
Author(s):  
Paula Tegelberg ◽  
Tellervo Tervonen ◽  
Matti Knuuttila ◽  
Jari Jokelainen ◽  
Sirkka Keinänen‐Kiukaanniemi ◽  
...  
Keyword(s):  
Metabolic Syndrome ◽  
Bone Loss ◽  
Alveolar Bone ◽  
Alveolar Bone Loss

Replantation of an Avulsed Permanent Maxillary central Incisor After Prolonged Dry Storage: A Case Report

2013 ◽  
Vol 5 (1) ◽  
pp. 5-7
Author(s):  
Mukut Seal ◽  
N. M. Dhanya Kumar
Keyword(s):  
Case Report ◽  
Emergency Treatment ◽  
Young Female ◽  
Definitive Treatment ◽  
Central Incisor ◽  
Maxillary Central Incisor ◽  
Dry Storage ◽  
Anterior Teeth ◽  
Long Term Prognosis

ABSTRACT All of us as clinicians at one time or another have to attend to dental emergencies involving severly fractured or even lost or avulsed anterior teeth. Treating such cases is often difficult and there is always a time factor involved. Loss of anterior teeth can affect a patient psychologically and socially. This can be minimised by an immediate replacement or replantation of the lost or avulsed teeth. Definitive treatment planning and consultation with specialists is seldom possible at the time of emergency treatment. Replantation of the avulsed tooth can restore esthetic appearance and occlusal function shortly after the injury. This article describes the management of a young female with an avulsed maxillary permanent incisor that had been air-dried for about 72 hours. The replanted incisor retained its esthetic appearance and functionality 8 months after replantation, yet the long-term prognosis remains questionable.

scholarly journals ALVEOLAR BONE LOSS AFTER THE EARLY LOSS OF UPPER CENTRAL INCISOR IN GROWING CHILDREN

2012 ◽  
Vol 39 (1) ◽  
pp. 51-57
Author(s):  
Hye-Jin Na ◽  
Je-Seon Song ◽  
Jae-Ho Lee ◽  
Hyung-Jun Choi ◽  
Seong-Oh Kim ◽  
...  
Keyword(s):  
Bone Loss ◽  
Alveolar Bone ◽  
Alveolar Bone Loss ◽  
Central Incisor ◽  
Early Loss

scholarly journals Evaluation of the relationship between periodontal risk and carotid artery calcifications on panoramic radiographs

2015 ◽  
Vol 09 (04) ◽  
pp. 483-489 ◽  
Author(s):  
Gulen Kamak ◽  
Eren Yildirim ◽  
Emin Rencber
Keyword(s):  
Carotid Artery ◽  
Bone Loss ◽  
Tooth Loss ◽  
Alveolar Bone ◽  
Significant Relation ◽  
Panoramic Radiographs ◽  
Carotid Artery Calcification ◽  
Periodontal Risk ◽  
The Relationship ◽  
Carotid Calcification

ABSTRACT Objective: To evaluate if there is a relationship between findings of carotid artery calcification (CAC) and periodontal risk in nonsmoker subjects by using panoramic radiographs (DPR). Materials and Methods: A total of 1146 DPRs were investigated. Gender, age, severity of bone loss, tooth loss, periodontal risk, and findings of carotid calcification were recorded. The periodontal risk was evaluated and classified according to the degree of alveolar bone loss. Results: CAC was diagnosed in %13.6 (n: 156) of DPRs. Of 1146 patients, 338 (29.5%) had low, 668 (60%) had moderate, and 120 (10.5%) had high periodontal risk. A statistically significant relation was observed between carotid calcification and periodontal risk. Conclusion: Positive findings of carotid calcification may be related with periodontal problems. Clinicians must be careful about diagnosing CACs on DPRs during routine examinations. In the case of positive findings of CAC and periodontitis together, the patient may be consulted to a specialist for further investigation.

Alveolar Bone Loss in Patients with Long-Term Supportive Care

1990 ◽  
Vol 61 (7) ◽  
pp. 434-437 ◽  
Author(s):  
Cynthia A. Layport ◽  
George W. Greco ◽  
Walter T. McFall
Keyword(s):  
Bone Loss ◽  
Supportive Care ◽  
Alveolar Bone ◽  
Alveolar Bone Loss

scholarly journals TITLE - MINERAL TRI-OXIDE AGGREGATE (MTA) FOR THE REPAIR OF PERIAPICAL TISSUES IN A PATIENT WITH SELF INFLICTED INJURIES: CASE REPORT

2013 ◽  
Vol 03 (01) ◽  
pp. 86-89
Author(s):  
Aditya Shetty ◽  
C. Ravi Chandra ◽  
Mithra N. Hegde ◽  
Uday S. Mahale ◽  
Ganesh Bhat
Keyword(s):  
Case Report ◽  
Cystic Lesion ◽  
Treatment Approach ◽  
Mineral Trioxide Aggregate ◽  
Dental Trauma ◽  
Filling Material ◽  
Central Incisor ◽  
Anterior Teeth

AbstractInjury to anterior teeth is a relatively common event. Dentists regularly deal with management of dental trauma and restoration of fractured teeth. Hence the treatment approach and medicaments that assures the biologically acceptable healing and improve long term success rate are of potential value and should be considered.A big cystic lesion, which is unable to heal non-surgically, heals well with use of Mineral Trioxide Aggregate (MTA Angelus) by surgical approach. Results of clinical trials have recommended the use of MTA as the most suitable root end filling material.This article presents the case report of management of big cystic lesion along with the lateral root perforation with maxillary left central incisor. Root canal treatment was followed by the resection of root end of tooth in question at the level of perforation and sealed with MTA. 12 month's follow up radiograph showed completely healed Cystic lesion.

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