scholarly journals Aberrations Causing Neurovascular Damage in the Anterior Maxilla during Dental Implant Placement

2017 ◽  
Vol 2017 ◽  
pp. 1-10 ◽  
Author(s):  
Shane J. J. McCrea

When dental implants are being considered for placement in the maxillary central incisor region, proximity to the nasopalatine canal and its contents needs to be accounted for. The morphology of the canal changes with age. The availability of CBCT has allowed the in-depth analysis of this important variable anatomy. However, an associated important anatomical structure can be easily overlooked: the “canalis sinuosus.” This is a neurovascular canal carrying the anterior superior alveolar (ASA) nerve and artery. CBCT frequently shows the canalis sinuosus (CS) as a wide canal lateral to the nasal cavity and also under the anterior part of the nasal floor in close proximity to the NPC. The CS distributes both neural supply and vascular supply to the maxillary anterior teeth which on CBCT sagittal analysis are seen as very fine circular canals having nondistinct walls. The author presents a case history of dental implant placement in the anterior maxilla which resulted in neurovascular disturbance as a result of invasion of the nasopalatine duct and injury to its contents together with the unidentified injury to an aberrant well-defined neurovascular canal inferior to the canalis sinuosus.

2021 ◽  
Vol 15 (1) ◽  
Author(s):  
Marziyeh Shafizadeh ◽  
Azita Tehranchi ◽  
Saeed Reza Motamedian

Context: The labial cortical bone may influence the outcomes of several treatments including fresh socket implant placement and orthodontic treatments. A thin labial plate may contribute to increased risks of periodontal consequences during dental procedures. Acknowledgment of the average values may guide clinicians to take particular considerations in making treatment decisions. Therefore, this study aimed to systematically review the labial cortical bone thickness (LBT) in the anterior maxillary teeth. Objective: The primary purpose of this study was to review the LBT in the anterior maxillary teeth to present the range of average LBT in the global population. Evidence Acquisition: An electronic search was conducted in PubMed, Embase, ProQuest, Web of Science, and Scopus databases. English studies that measured the LBT in the maxillary anterior teeth using CT or CBCT scans were deemed relevant. Only studies performed on adult patients with a lack of periodontal disease were included. Results: A total of 49 studies were included. Mean LBT ranged 0.13 - 3.08, 0.29 - 4.2, and 0.36 - 4.5 mm in maxillary central incisor, lateral incisor, and canine, respectively. Expectedly, LBT was affected by the vertical level of the measurement point and increased toward the apex. In total, the LBT in the anterior maxilla ranged from 0.13 to 4.5 mm. In comparison with other populations, a relatively thin labial plate was evidenced in the Iranian populations. Conclusions: This study showed a wide range of LBT in the esthetic zone. A thin plate in the esthetic area necessitates caution in orthodontic treatments, particularly when tooth expansion or proclination is required. Additionally, wide ranges of reported values which are mostly under 2 mm, highlight the importance of CBCT acquisition before any fresh socket implant placement.


2019 ◽  
Vol 2019 ◽  
pp. 1-5 ◽  
Author(s):  
Roman Volberg ◽  
Oleg Mordanov

Dental implant failure in the anterior maxilla can be caused by the range of the features. One of them is neighboring neurovascular structure damage, such as the canalis sinuosus (CS), that carries the superior anterior alveolar nerve. The aim of the report is to demonstrate clinical symptomatology and radiographic signs of CS damage in a 45-year-old female patient who underwent upper left lateral incisor extraction and immediate implant placement and implant removal in 16 days secondary to pain and paresthesia in the maxillary left region.


2021 ◽  
pp. 29-30
Author(s):  
Deepika Sharma ◽  
Tarun Gaur ◽  
Karunakaran Keshav

With the advancement in the dental implant treatment, many new innovative improvements have been developed in the designs and components of implants. These improvements helps to handle the compromising situations where sometimes the good treatment option can become more challenging. One of the such grueling condition is implant placement in the anterior maxilla where dentist has to fulll both aesthetic and functional demand. Many aesthetic failures of implant have been reported in the literature in the anterior maxilla. One of them is placing implant in sites with deciency of facial bone thickness which sometimes resulted in malposition of implant. This case report discusses about the prosthodontic correction of malpositioned implant in the anterior maxilla by using castable abutment. The use of castable abutment is concluded as successful treatment option for complex misaligned and malposed single dental implant.


BDJ ◽  
2019 ◽  
Vol 226 (9) ◽  
pp. 657-661 ◽  
Author(s):  
Andrew Shelley ◽  
James Tinning ◽  
Julian Yates ◽  
Keith Horner

2010 ◽  
Vol 14 (5) ◽  
pp. 768-771 ◽  
Author(s):  
Ziv Mazor ◽  
Adi Lorean ◽  
Eitan Mijiritsky ◽  
Liran Levin

2013 ◽  
Vol 7 (3) ◽  
pp. 181-183
Author(s):  
A Agarwal ◽  
P Gupta ◽  
M Goel ◽  
N Jindal ◽  
J Batra

ABSTRACT Odontomes arise as a result of an aberration in the tissues responsible for the formation of teeth. Though regarded as tumors or hamartomas in the past they are now usually regarded as variations in development of malformations. A 15 yr old female patient with complaint of swelling and mobility of upper anterior teeth diagnosed as complex Odontomes of anterior maxilla managed with enucleation. Odontomes are diagnosed in the second decade of life and are commonly associated with delayed eruption and displacement of related permanent teeth which is sometimes accompanied by retention of deciduous teeth and swelling. The treatment of the Odontomes is surgical removal and there is no expectancy of recurrence. Since both the ameloblastic odontoma and the ameloblastic fibro-odontoma bear great resemblance to the common Odontomes, particularly on the radiographs it is suggested that all Odontomes be sent for histopathological examination.


Prosthesis ◽  
2021 ◽  
Vol 3 (2) ◽  
pp. 129-136
Author(s):  
Himanshu Arora ◽  
Sašo Ivanovski

The nature of immediate implant placement followed by an immediate restoration protocol makes it particularly suited to the anterior maxilla. In addition to saving treatment time and avoiding additional surgical procedures, this protocol has been reported to improve aesthetic outcomes by supporting the peri-implant tissues during the implant healing phase through the use of a provisional restoration. This case report documents the use of this protocol in a patient with a failing maxillary anterior tooth and reports on the soft and hard tissue changes over an observation period of 10 years. An implant was immediately placed after removal of a failing maxillary central incisor followed by the provision of a screw retained provisional crown on the same day. A definitive restoration was placed after a 3-month healing period. Not only did this protocol manage to maintain peri-implant bone levels over the 10-year follow-up period, excellent aesthetic outcomes and very limited soft tissue recession were observed with the use of this technique.


Author(s):  
Prabal Sharma ◽  
Bhumika Sharma ◽  
Sumit Makkar ◽  
Sandeep Kalra

AbstractAlteration in conventional techniques in anterior maxilla is essential for making a restoration look more natural and harmonious with the rest of the mouth, as this area is more prone to aesthetic failure. The visibility of anterior crowns is obviously more, making it necessary for a restoration to blend with the natural dentition. This makes a person’s smile more pleasant and aesthetic. Proper risk assessment must be considered while placing implants in anterior maxillary region as any deficiency in bone and soft tissue could compromise the aesthetics as well as overall success of a dental implant restoration. Timing of implant placement also plays a crucial role in providing aesthetic success in this region. This article presents a case where implant placement is done, enhancing the aesthetics as well as function in the anterior maxillary region.


2020 ◽  
Vol 6 (1) ◽  
Author(s):  
Dong Wu ◽  
Lin Zhou ◽  
Jin Yang ◽  
Bao Zhang ◽  
Yanjun Lin ◽  
...  

Abstract Objectives To compare the accuracy of dynamic navigation (DN) with a static surgical guide (SSG) for dental implant placement and the influence factors such as the experience of the surgeon and the implant sites. Methods and materials A total of 38 implants, which underwent the dynamic navigation, and 57 implants which underwent a static surgical guide were enrolled in the retrospective study. Coronal deviation, apical deviation, and angular deviation were compared between the DN and SSG groups, along with the different experience level of surgeons and implant sites in the DN group. Results There were no statistically significant differences between the DN and SSG groups, and the experience level of the surgeons and implant sites in the DN group. However, the apical deviation of the DN was slightly higher than the SSG group in the anterior teeth (P = 0.028), and the angular deviation of DN was smaller than the SSG group in the molar. Conclusion Dynamic navigation can achieve accurate implant placement as well as the static surgical guide. Additionally, the experience level of the surgeon and implant site do not influence the accuracy of dynamic navigation, while the accuracy of DN seems higher than the SSG in molar.


Sign in / Sign up

Export Citation Format

Share Document