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Head and Neck Muscles
Published in Eve K. Boyle, Vondel S. E. Mahon, Rui Diogo, Handbook of Muscle Variations and Anomalies in Humans, 2022
Eve K. Boyle, Vondel S. E. Mahon, Rui Diogo, Warrenkevin Henderson, Hannah Jacobson, Noelle Purcell, Kylar Wiltz
Incisivus labii superioris is considered an accessory muscle of orbicularis oris (Iwanaga et al. 2017). It arises deep to the superior portion of orbicularis oris, below the alar portion of nasalis, lateral to depressor septi, and medial to levator anguli oris (Lightoller 1925; Standring 2016; Iwanaga et al. 2017; Hur 2018). It originates from the incisive fossa of the maxilla above the eminence of the lateral incisor (Standring 2016). Its bony attachment extends mediolaterally between the areas above the central incisor and the canine and superoinferiorly between the attachment of nasalis and the mucogingival junction (Iwanaga et al. 2017). Its fibers course laterally, interdigitate with orbicularis oris, and divide into superficial and deep parts that attach to the modiolus (Lightoller 1925; Standring 2016; Iwanaga et al. 2017). Hur (2018) notes that it may not divide into superficial and deep parts in some cases. It blends with other muscles at the angle of the mouth, particularly levator anguli oris (Lightoller 1925; Standring 2016; Iwanaga et al. 2017; Hur 2018).
3D analysis of the clinical results of VISTA technique combined with connective tissue graft
Published in J. Belinha, R.M. Natal Jorge, J.C. Reis Campos, Mário A.P. Vaz, João Manuel, R.S. Tavares, Biodental Engineering V, 2019
D.S. Martins, L. Azevedo, N. Santos, T. Marques, C. Alves, A. Correia
The region of interest was selected by vestibular, in the tooth that present gingival recession. The models were digitalized from the coronal edge of the tooth with recession to 5–6 mm beyond the mucogingival junction and the mesiodistal extension of the scan is of canine to canine.
Surgical Exposure
Published in Jeffrey R. Marcus, Detlev Erdmann, Eduardo D. Rodriguez, Essentials of CRANIOMAXILLOFACIAL TRAUMA, 2014
Jonathan A. Zelken, Eduardo D. Rodriguez
After a vasoconstrictor is infiltrated, the incision is placed 3 to 5 mm labial to the mucogingival junction, beginning at the midline and continuing posteriorly as necessary (Fig. 10-6). Posterior dissection should not continue beyond the first molar to avoid buccal fat pad injury. The incision should extend deep to bone.
Hyaluronic acid injection to restore the lost interproximal papilla: a systematic review
Published in Acta Odontologica Scandinavica, 2022
Adriana Castro-Calderón, Andrea Roccuzzo, Martina Ferrillo, Sneha Gada, José González-Serrano, Manrique Fonseca, Pedro Molinero-Mourelle
Regarding the injection technique, five studies injected the filler 2–3 mm apical to the PT [23,25–28], two of them at 2–3 mm coronal to the PT [24,30] and three at the base of the deficient papilla [29,31,33]. Two studies [26,32] performed a 3 injection-technique filling. One study [32] described a technique with 3 injections at the papilla forming an equilateral triangle with the adjacent teeth. Another 3 injection-technique was described by Bertl et al. [26]: firstly, creating a reservoir in the mucosa above the mucogingival junction, secondly injecting 2–3 mm apically to the tip of the deficient papilla and finally into the attached gingiva/mucosa just below the base of the deficient papilla. Post-operative instructions varied among 6 studies [24,25,28,31–33], being the most common recommendations no brushing within first 24 h and extreme oral hygiene after the procedure. Five studies did not specify any recommendations [23,26,27,29,30]. Details of the clinical procedures are reported in Table 3.
Efficacy of modified coronally advanced flap in the treatment of multiple adjacent gingival recessions: a systematic review and meta-analysis
Published in Acta Odontologica Scandinavica, 2021
Anu Bhatia, Vikender Singh Yadav, Nitesh Tewari, Ashish Kumar, Rajinder Kumar Sharma
In terms of KTW, a significant gain compared to baseline was observed in all the included studies. This could be explained by the cascades of events occurring during wound healing and maturation. These events may be related to the tendency of mucogingival junction to shift apically in its genetically determined position following coronal advancement [56], granulation tissue derived from periodontal ligament and potential of underlying connective tissue to induce the formation of keratinized gingiva [57,58]. Comparing mCAF and CAF, it was shown that mCAF resulted in a greater increase in KTW than conventional CAF [33]. It may be speculated that disruption of mucogingival junction by vertical releasing incisions in CAF may delay its realignment resulting in a relatively less increase in KTW. However, long-term observations should validate this hypothesis. Furthermore, adjunctive use of CTG with mCAF showed an additional gain in KTW at the end of study period [31,32,37,38,46]. However, the meta-analysis of studies comparing mCAF with mCAF + CTG [37,38] did not yield any statistically significant difference for KTW gain (p=.08), though there was a tendency for favouring CTG group as seen in forest plot. Also, it is apparent from meta-analysis that these studies showed higher heterogeneity for gain in KTW indicating the possible influence of patient’s and defect related factors.
Determination of baseline alveolar mucosa perfusion parameters using laser Doppler flowmetry and tissue spectrophotometry in healthy adults
Published in Acta Odontologica Scandinavica, 2020
Obada Barry, Ying Wang, Gerhard Wahl
Measurements were performed using a noninvasive LDF-TS system (O2C ‘oxygen to see’ device, LEA-Medizintechnik, Gießen, Germany) to assess oxygen saturation So2 (%), relative amount of hemoglobin rHb in arbitrary units (AU), blood flow (AU) and velocity (AU) of the oral alveolar mucosa at depth up to 3 mm. The location of the measurement’s position was in the oral mucosa 5 mm away from the mucogingival junction in an apical direction. Twenty measurement sites were selected in the maxilla and the mandible of each patient.