MyMedR

Fulltext To determine and compare the position of neutral zone in relation to crest of mandibular alveolar ridge with different duration of edentulousness: A clinico-radiographic study

Jain A, Shetty NS, Ugrappa S

Indian J Dent, 2015 Jan-Mar;6(1):7-13.

PMID: 25767354 DOI: 10.4103/0975-962X.151691

The purpose of this study was to establish a relation between the crest of alveolar ridge and functionally obtained neutral zone and to determine the effect of duration of edentulousness on the location of neutral zone in relation to the crest of residual alveolar ridge.

Matched MeSH terms: Alveolar Process

Fulltext Innovations in flapless corticotomy to accelerate orthodontic tooth movement: a review focusing on the different techniques, limitations and future possibilities

Sharmin Sultana, Norma Ab Rahman, Siti Lailatul Akmar Zainuddin, Basaruddin Ahmad

Malaysian Journal of Medicine and Health Sciences, 2020;16(2):308-315.

MyJurnal

The aim of this narrative review is to discuss on different approaches of the flapless corticotomy techniques to ac- celerate orthodontic tooth movement. There was limited understanding about the effect of the surgical procedures because of the great variations in the procedures between the flapless corticotomy techniques. Hence, no specific technique can be claimed to be superior to another. Eleven clinical trials have been reviewed from PubMed, Science Direct, and Google Scholar using the keywords such as accelerated, orthodontic tooth movement (OTM), minimally invasive corticotomy, RAP, corticision, piezocision, lasercision/laser assisted flapless corticotomy (LAFC), micro-os- teoperforations (MOPs), discision and their combinations in the last 10 years. Early reports showed that Piezocision, MOPs and LAFC procedures are comparatively less aggressive flapless corticotomy procedure to accelerate OTM and more comfortable to the patient.

Matched MeSH terms: Alveolar Process

Bone--its importance in prosthetic dentistry

Lam RV

Dent J Malaysia Singapore, 1968 Oct;8(2):43-6.

PMID: 4886204

Matched MeSH terms: Alveolar Process

Fulltext Congenital fibrous epulis: a case report

Majid ZA, Siar CH, Ling KC

Med J Malaysia, 1986 Jun;41(2):179-82.

PMID: 3821617

An unusual case of fibrous epulis in a newborn is presented. The clinical appearance, histological features and method of treatment are described. A short review of the literature is also included.

Matched MeSH terms: Alveolar Process/pathology*

The rate of loss of maxillary anterior alveolar bone height in patients with leprosy

Subramaniam K, Marks SC, Seang Hoo Nah

Lepr Rev, 1983 Jun;54(2):119-27.

PMID: 6888141

Matched MeSH terms: Alveolar Process/pathology*

Relationship between the loss of maxillary anterior alveolar bone and the duration of untreated lepromatous leprosy in Malaysia

Nah SH, Marks SC, Subramaniam K

Lepr Rev, 1985 Mar;56(1):51-5.

PMID: 3990507

Matched MeSH terms: Alveolar Process/pathology*

Fulltext A three-dimension finite element analysis to evaluate the stress distribution in tooth supported 5-unit intermediate abutment prosthesis with rigid and nonrigid connector

Modi R, Kohli S, Rajeshwari K, Bhatia S

Eur J Dent, 2015 6 4;9(2):255-261.

PMID: 26038660 DOI: 10.4103/1305-7456.156847

OBJECTIVE: The aim of the study is to evaluate the stress distribution in tooth supported 5-unit fixed partial denture (FPD) having tooth as pier abutment using rigid and nonrigid connectors respectively, under simultaneous and progressive loading.

MATERIAL AND METHODS: The three-dimensional (3D) finite element program (ANSYS software) was used to construct the mathematical model. Two 5-unit FPD'S were simulated, one with rigid connector and another one with nonrigid connector. For analysis, each of these models were subjected to axial and oblique forces under progressive loading (180, 180, 120, 120, 80 N force on first and second molars, premolars and canine respectively) and simultaneous loading (100, 100, 100, 100, 100 N force on first and second molars, premolars and canine respectively).

RESULTS: The rigid and nonrigid connector design have effect on stress distribution in 5-unit FPDs with pier abutments.

CONCLUSION: Oblique forces produce more stresses than vertical forces. Nonrigid connector resulted in decrease in stress at the level of prosthesis and increase in stress at the level of alveolar crest.

Matched MeSH terms: Alveolar Process

Fulltext Variation in Lingual Nerve Course: A Human Cadaveric Study

Al-Amery SM, Nambiar P, Naidu M, Ngeow WC

PLoS One, 2016 09 23;11(9):e0162773.

PMID: 27662622 DOI: 10.1371/journal.pone.0162773

The lingual nerve is a terminal branch of the mandibular nerve. It is varied in its course and in its relationship to the mandibular alveolar crest, submandibular duct and also the related muscles in the floor of the mouth. This study aims to understand the course of the lingual nerve from the molar area until its insertion into the tongue muscle. This cadaveric research involved the study of 14 hemi-mandibles and consisted of two parts: (i) obtaining morphometrical measurements of the lingual nerve to three landmarks on the alveolar ridge, and (b) understanding non-metrical or morphological appearance of its terminal branches inserting in the ventral surface of the tongue. The mean distance between the fourteen lingual nerves and the alveolar ridge was 12.36 mm, and they were located 12.03 mm from the lower border of the mandible. These distances were varied when near the first molar (M1), second molar (M2) and third molar (M3). The lingual nerve coursed on the floor of the mouth for approximately 25.43 mm before it deviated toward the tongue anywhere between the mesial of M1 and distal of M2. Thirteen lingual nerves were found to loop around the submandibular duct for an average distance of 6.92 mm (95% CI: 5.24 to 8.60 mm). Their looping occurred anywhere between the M2 and M3. In 76.9% of the cases the loop started around the M3 region and the majority (69.2%) of these looping ended at between the first and second molars and at the lingual developmental groove of the second molar. It gave out as many as 4 branches at its terminal end at the ventral surface of the tongue, with the presence of 2 branches being the most common pattern. An awareness of the variations of the lingual nerve is important to prevent any untoward complications or nerve injury and it is hoped that these findings will be useful for planning of surgical procedures related to the alveolar crest, submandibular gland/ duct and surrounding areas.

Matched MeSH terms: Alveolar Process

The safety zone for mini-implant maxillary anchorage in Mongoloids

Wey MC, Shim CN, Lee MY, Jamaluddin M, Ngeow WC

Aust Orthod J, 2012 May;28(1):17-21.

PMID: 22866589

This study aimed to establish a safety zone for the placement of mini-implants in the buccal surface between the second maxillary premolar (PM2) and first maxillary molar (M1) of Mongoloids.

Matched MeSH terms: Alveolar Process/anatomy & histology; Alveolar Process/surgery

Modified Activation Technique for Nasal Stent of Nasoalveolar Molding Appliance for Columellar Lengthening in Bilateral Cleft Lip/Palate

Patil PG, Nimbalkar-Patil SP

J Prosthodont, 2018 Jan;27(1):94-97.

PMID: 27002917 DOI: 10.1111/jopr.12464

Bilateral cleft lip/cleft palate is associated with nasal deformities typified by a short columella. The presurgical nasoalveolar molding (NAM) therapy approach includes reduction of the size of the intraoral alveolar cleft as well as positioning of the surrounding deformed soft tissues and cartilages. In a bilateral cleft patient, NAM, along with columellar elongation, eliminates the need for columellar lengthening surgery. Thus the frequent surgical intervention to achieve the desired esthetic results can be avoided. This article proposes a modified activation technique of the nasal stent for a NAM appliance for columellar lengthening in bilateral cleft lip/palate patients. The design highlights relining of the columellar portion of the nasal stent and the wire-bending of the nasal stent to achieve desirable results within the limited span of plasticity of the nasal cartilages. With this technique the vertical taping of the premaxilla to the oral plate can be avoided.

Matched MeSH terms: Alveolar Process/abnormalities; Alveolar Process/growth & development

Hypoglossia congenita with anterior maxillo-mandibular fusion

Arshad AR, Goh CS

Br J Plast Surg, 1994 Mar;47(2):139-41.

PMID: 8149059

Two cases of hypoglossia congenita with anterior maxillo-mandibular fusion are reported. One is a case of hypoglossia with anterior maxillo-mandibular fusion and the other is a case of hypoglossia-hypodactylia with anterior maxillo-mandibular fusion. This condition presents the anaesthetist with the problem of airway management during the surgery. A simple technique using a nasopharyngeal tube was used for these two cases, with satisfactory results.

Matched MeSH terms: Alveolar Process/abnormalities; Alveolar Process/surgery

Evaluation of bone healing following immediate and delayed dental implant placement

Younis L, Taher A, Abu-Hassan MI, Tin O

J Contemp Dent Pract, 2009;10(4):35-42.

PMID: 19575052

The purpose of this study was to compare bone healing and coronal bone remodeling following both immediate and delayed placement of titanium dental implants in extraction sockets.

Matched MeSH terms: Alveolar Process/radiography; Alveolar Process/surgery*

Patient-reported outcome and its association with attachment type and bone volume in mandibular implant overdenture

Khalid T, Yunus N, Ibrahim N, Elkezza A, Masood M

Clin Oral Implants Res, 2017 May;28(5):535-542.

PMID: 26989853 DOI: 10.1111/clr.12831

OBJECTIVE: To determine oral health-related quality of life (OHRQoL) and denture satisfaction (DS) in patients provided with mandibular implant-supported overdentures (ISOD) retained by two different attachment types, and the association of mandibular bone volume with the change in patient-reported outcome, before and after implant treatment.

MATERIAL AND METHODS: Thirty-four patients (mean age 60.70  ±  8.7 years) received telescopic crown or locator attachments for ISOD and completed OHIP-14 (Malaysian version) and DS questionnaires, at baseline (T0 ) with new conventional complete dentures (CCD) and 3 months (T1 ) and 3 years (T2 ) after ISOD conversion. Mandibular bone volume was calculated from cone beam computed tomography (CBCT) datasets using Mimics software. Mean changes (MC) in OHIP-14 and DS at intervals were analyzed using the Wilcoxon signed-rank test and effect size (ES). The association of bone volume, implant attachment type, and other patient variables with the change in OHIP-14 and DS were determined using multivariate linear regression analysis.

RESULTS: The MC in OHIP-14 and DS scores from T0 to T1 and T2 showed significant improvement with moderate and large ES, respectively. Regression analyses for the change in OHIP-14 score from T0 to T2 showed significant association with implant attachment type (P = 0.043), bone volume (P = 0.004), and baseline OHIP-14 (P = 0.001), while for DS, the association was only significant with baseline DS score (P = 0.001).

CONCLUSION: Improvement in patients' OHRQoL and satisfaction with ISOD was associated with their baseline ratings. Mandibular bone volume had a stronger association for improvement in OHRQoL compared to type of attachment.

Matched MeSH terms: Alveolar Process/pathology; Alveolar Process/surgery

Prevention of alveolar bone resorption by the use of autogenous root implants

Lam RV, Hong EN, Ann LS

Dent J Malaysia Singapore, 1971 Oct;11(2):4-6.

PMID: 5290957

Matched MeSH terms: Alveolar Process

A new approach for better anterior esthetic using platelet-rich fibrin as sole graft material combined with ovate design dental bridge

Buzayan MM, Mahdey HM, Ning CJ

J Indian Prosthodont Soc, 2020 04 07;20(2):219-223.

PMID: 32655228 DOI: 10.4103/jips.jips_264_19

Alveolar ridge deficiency is considered a major esthetic limitation, especially in the maxillary anterior region. Several approaches have been developed to enhance and increase the soft-tissue volume. Among those approaches are connective tissue grafts, platelet-rich fibrin (PRF) membrane and implying the guided bone regeneration concept. The PRF grafting technique was employed in this clinical case to improve and enhance the anterior esthetic without the need for the bone graft and augmentation. This article describes the use of PRF as a sole grafting material for both socket and soft-tissue augmentation for a 23-year-old male, who had an accident 8 years ago while he was playing a basketball, which caused his upper front teeth to be intruded and discolored. The upper left central tooth suffered a major external root resorption; hence, it was extracted. PRF was prepared and packed in and extruded out of the socket. This was combined with ovate design provisional bridge. Ten days, 1 month, 3 months, and 6 months postoperative review showed a significantly well-progressed healing. According to the encouraging result obtained in this clinical case in regard to tissue healing and esthetic, the PRF can be a potential sole graft material for small anterior deficient areas. This may reduce the need of bone augmentation and graft in such selected cases.

Matched MeSH terms: Alveolar Process

Fulltext Osteo-odonto-keratoprosthesis for end-stage cornea blindness

Wong HS, Then KY, Ramli R

Med J Malaysia, 2011 Oct;66(4):369-70.

PMID: 22299563 MyJurnal

We report the first case of Osteo-odonto-keratoprosthesis (OOKP) who successfully underwent surgery in Malaysia following a grade 4 (severe) chemical injury in both eyes in 2006. The patient's left eye was eviscerated and his right eye underwent penetrating keratoplasty. However, the corneal graft failed and became opaque. His right eye could only perceive light. The OOKP was offered to him hoping to recover some functional vision. He underwent a 2-stage surgery to implant the OOKP into his right eye. However, 2 months post-operation, he developed vitreous haemorrhage. A successful pars plana vitrectomy (PPV) was performed via the limited view through the lens. He attained a final visual acuity of 6/60 (N36). He was able to mobilize more independently, feed, dress himself and read large print.

Matched MeSH terms: Alveolar Process/transplantation*

Age estimation from structural changes of teeth and buccal alveolar bone level

Koh KK, Tan JS, Nambiar P, Ibrahim N, Mutalik S, Khan Asif M

J Forensic Leg Med, 2017 May;48:15-21.

PMID: 28407514 DOI: 10.1016/j.jflm.2017.03.004

Forensic odontology plays a vital role in the identification and age estimation of unknown deceased individuals. The purpose of this study is to estimate the chronological age from Cone-Beam Computed Tomography (CBCT) images by measuring the buccal alveolar bone level (ABL) to the cemento-enamel junction and to investigate the possibility of employing the age-related structural changes of teeth as studied by Gustafson. In addition, this study will determine the forensic reliability of employing CBCT images as a technique for dental age estimation. A total of 284 CBCT images of Malays and Chinese patients (150 females and 134 males), aged from 20 years and above were selected, measured and stages of age-related changes were recorded using the i-CAT Vision software. Lower first premolars of both left and right side of the jaw were chosen and the characteristics described by Gustafson, namely attrition, secondary dentine formation and periodontal recession were evaluated. Linear regression analysis was performed for the buccal bone level and the R values obtained were 0.85 and 0.82 for left and right side respectively. Gustafson's characteristics were analysed using multiple regression analysis with chronological age as the dependent variable. The results of the analysis showed R values ranged from 0.44 to 0.62. Therefore it can be safely concluded that the buccal bone level highly correlated with the chronological age and is consequently the most suitable age-related characteristic for forensic age estimation.

Matched MeSH terms: Alveolar Process/growth & development

Mandibular reconstruction: experience with the free vascularized fibula transfer

Khanijow VK, Ahmad TS, Lian CB, Jalaludin MA

Microsurgery, 1993;14(6):375-9.

PMID: 8371683

Mandibular resection, following surgery for tumor or osteoradionecrosis, leaves a patient with a swallowing, speech, and cosmetic disability. Repair of the oromandibular defect is difficult and various prostheses and grafts have been used and reported. The most popular form of mandibular reconstruction is the use of the free, vascularized bone transfer. We report our experience with the free vascularized fibula bone transfer in eight patients.

Matched MeSH terms: Alveolar Process/surgery

Fulltext Combined soft and hard tissue augmentation for a localized alveolar ridge defect

Rana R, Ramachandra SS, Lahori M, Singhal R, Jithendra KD

Contemp Clin Dent, 2013 Oct;4(4):556-8.

PMID: 24403810 DOI: 10.4103/0976-237X.123090

Ideal alveolar ridge width and height allows placement of a natural appearing pontic, which provides maintenance of a plaque-free environment. The contour of a partially edentulous ridge should be thoroughly evaluated before a fixed partial denture is undertaken. Localized alveolar ridge defect refers to a volumetric deficit of the limited extent of bone and soft-tissue within the alveolar process. These ridge defects can be corrected by hard tissue and/or soft-tissue augmentation. A 30-year-old male patient was referred to the Department of Periodontology for correction of Seibert's Class III ridge defect in the lower anterior region. Granulation tissue/connective tissue present at the base of the defect was removed after elevation of full thickness flap. MucoMatrixX, an animal derived, collagen based soft-tissue graft was sutured to the labial flap and bone graft was placed into the defect. If a soft-tissue graft material could be used to replace the palatal grafts, then all the possible complications associated with donor site would be eliminated and above all periodontal plastic surgery and ridge augmentation would be better accepted by patients.

Matched MeSH terms: Alveolar Process

Fulltext Assessment of interradicular spaces for miniscrew placement in class I subjects

Al-Jaf, Nagham, Rohaya Megat Abdul Wahab, Mohamed Ibrahim Abu Hassan

Compendium of Oral Science, 2015;2(1):14-20.

MyJurnal

Objectives: To assess interradicular spaces of maxilla and mandible in subjects with class I sagittal skeletal relationship as an aid for miniscrew placement. Materials and Methods: The study was carried out using cone-beam computed tomography (CBCT) images of 47 adult subjects with class I skeletal relationship. Interradicular spaces were obtained at the alveolar processes from first premolar to second molar at 2 different vertical levels (6 and 8mm) from the cementoenamel junction (C.E.J). Results: In the maxilla, the highest inter-radicular space existed between second premolar and first molar. In the mandible, the highest interradicular space existed between first and second molar. All mandibular measurements were higher than their respective maxillary measurement. Generally, availability of interradicular space increases apically in both arches, but the difference is not significant. In the maxilla, male subjects’ measurement were significantly higher at 8 mm level between second premolar and first molar and between first and second molar Conclusions: Interradicular spac-es in the maxillary and mandibular alveolar spaces are available for miniscrew placement. In both arches, a more apical location provides more interradicular space. However, careful planning is needed to avoid sinus perforation.

Matched MeSH terms: Alveolar Process

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