Transalveolar screws and the incidence of dental damage: a prospective study

Fabbroni, G.; Aabed, S; Mizen, Kelvin; Starr, D.G.

doi:10.1016/j.ijom.2003.10.014

Cited by 101 publications

(84 citation statements)

References 5 publications

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“…Radiography has been reported to be a good tool to assess signs of screw damage to dental root structure, but the true extent of the damage can only be reliably ascertained histologically. 20,21 Screw-induced dental trauma is associated with infection or inflammation and can result in fixation failure and tooth loss 9,19,35 ; therefore, it is imperative to minimize screw-root involvement during application of miniplates to the mandible. In human patients, titanium miniscrews can cause damage to the inferior alveolar nerve, which in most cases results in transient paresthesia or dysesthesia.…”

Section: Discussionmentioning

confidence: 99%

“…tooth root or mandibular canal abnormalities indicative of iatrogenic damage caused by the fixation construct. [19][20][21] Iatrogenic damage to tooth roots or the mandibular canal by screws was quantified by counting the number of screw holes that were superimposed over a tooth root 20 or the mandibular canal, a method that has high sensitivity (low falsenegative rate) and low specificity (high false-positive rate).…”

Section: Radiographymentioning

confidence: 99%

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Biomechanical evaluation of two plating configurations for fixation of a simple transverse caudal mandibular fracture model in cats

Greiner

Verstraete

Stover

et al. 2017

ajvr

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M andibular fractures occur commonly in cats, representing 11.4% to 16% of all fractures. 1-3 Among mandibular fractures and related injuries, 73.3% involve separation of the symphysis, 16% involve fracture of the mandibular body, 6.7% involve fracture of the condyloid process, and 4% involve fracture of the condylar process. 3 Apart from acute bleeding subsequent to trauma, mandibular body fractures typically result in malocclusion, signs of pain and discomfort, and pronounced loss of function.Repair options for fractures of the caudal portion of the mandible are limited. Maxillomandibular fixation stabilizes the mandibles to the maxillas in a closed-mouth position with minimal overlapping of the canine teeth. The assumption is that this fixation

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Section: Discussionmentioning

confidence: 99%

Section: Radiographymentioning

confidence: 99%

Biomechanical evaluation of two plating configurations for fixation of a simple transverse caudal mandibular fracture model in cats

Greiner

Verstraete

Stover

et al. 2017

ajvr

View full text Add to dashboard Cite

show abstract

“…Another study using 236 screws for intermaxillary fixation showed that root contact occurred 27.1% of the time. 7 With prosthodontic implants, surgical stents have been used to avoid damage to adjacent structures and to guide placement of the implant. 8 Surgical stents have also been applied for palatal implants as orthodontic anchorage.…”

Section: Introductionmentioning

confidence: 99%

“…12 Root contact of the mini-implant can cause devitalization of the tooth. 7 The friction of inserting a mini-implant into bone can initiate an inflammatory reaction around the miniimplant, resulting in damages to the bone tissue. 13,14 Inflammation around the root can induce external root resorption.…”

Section: Introductionmentioning

confidence: 99%

Root and Bone Response to the Proximity of a Mini-Implant under Orthodontic Loading

Lee¹,

Kim²,

Baek³

et al. 2010

The Angle Orthodontist

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Objective: To determine the histological reaction of the root and bone as a mini-implant approaches the root. Materials and Methods: Two kinds of mini-implants were inserted into the buccal alveolar bone of 4 beagles (2 males and 2 females). The specimens were classified as the near-root group, the PDL contact group, the root contact group, and the root perforation group. Cementum resorption, dentin resorption, cementum repair, cementum growth, ankylosis, root cracking, and root fracture were assessed as the implant neared the root. Results: The incidence of root resorption increased when the mini-implant was less than 0.6 mm from the root in the near-root group and PDL contact group. Root cracking and root fracture occurred in the root contact group and root perforation group. Bone resorption and ankylosis were observed in some specimens. However, some specimens of the PDL contact group and root contact group had cementum growth or little root resorption despite proximity to the root. In the root perforation group, root resorption and ankylosis occurred on the side opposite the insertion. Conclusions: There is a risk of root contact and severe tissue damage from a thick mini-implant and the drilling procedure, either of which can induce root resorption or ankylosis. Use of smaller mini-implants may reduce root contact and tissue damage. However, the small mini-implant may need enhancement of its stability. (Angle Orthod. 2010;80:452-458.)

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“…However, tooth injury represents a risk that is not to be underestimated. [7][8][9] To avoid root damage, Park et al 10 introduced an oblique instead of a perpendicular mini-implant insertion because more space was available near the apical region [10][11][12] ( Figure 1). Clinicians have assumed that the reduced stability and inferior anchorage quality associated with the obliquely a Orthodontist, Department of Orthodontics, University of Duesseldorf, Duesseldorf, Germany.…”

Section: Introductionmentioning

confidence: 99%

Insertion Angle Impact on Primary Stability of Orthodontic Mini-Implants

Wilmes

Drescher

2008

The Angle Orthodontist

152

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Objective:To analyze the impact of the insertion angle on the primary stability of mini-implants. Materials and Methods: A total of 28 ilium bone segments of pigs were embedded in resin. Two different mini-implant sizes (Dual-Top Screw 1.6 ϫ 8 mm and 2.0 ϫ 10 mm) were inserted at seven different angles (30Њ, 40Њ, 50Њ, 60Њ, 70Њ, 80Њ, and 90Њ). The insertion torque was recorded to assess primary stability. In each bone, five Dual-Top Screws were used to compensate for differences in local bone quality. Results: The angle of mini-implant insertion had a significant impact on primary stability. The highest insertion torque values were measured at angles between 60Њ and 70Њ (63.8Њ for DualTop 1.6 mm and 66.7Њ for Dual-Top 2.0 mm). Very oblique insertion angles (30Њ) resulted in reduced primary stability. Conclusions: To achieve the best primary stability, an insertion angle ranging from 60Њ to 70Њ is advisable. If the available space between two adjacent roots is small, a more oblique direction of insertion seems to be favorable to minimize the risk of root contact.

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Transalveolar screws and the incidence of dental damage: a prospective study

Cited by 101 publications

References 5 publications

Biomechanical evaluation of two plating configurations for fixation of a simple transverse caudal mandibular fracture model in cats

Biomechanical evaluation of two plating configurations for fixation of a simple transverse caudal mandibular fracture model in cats

Root and Bone Response to the Proximity of a Mini-Implant under Orthodontic Loading

Insertion Angle Impact on Primary Stability of Orthodontic Mini-Implants

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