MyMedR

Dental abnormalities of a long-term survivor of a childhood hematological malignancy: literature review and report of a case

Zarina RS, Nik-Hussein NN

J Clin Pediatr Dent, 2005;29(2):167-74.

PMID: 15719924

The treatment of haematological malignancy is multimodal and involves chemotherapy, radiotherapy and/or bone marrow transplants. With the advancement in cancer therapy, there is an increase in the survival of many children with childhood haematological malignancy. In addition, the late effect of the oncology treatment to the orofacial and dental development becomes significant in terms of the potential clinical impact that may affect the quality of life of the survivor. The severity of the long-term effects is dependent on the age of the child at initiation of treatment and whether chemotherapy is combined with radiation or not. The dental treatment may become more complex if the patient requires advanced restorative dental care and the roots malformation may complicate orthodontic treatment. Therefore these patients may require a scheduled careful preventive programme, long-term follow up, with prophylactic treatment and intervention at appropriate time to minimize the consequences of the disease and the given therapy.

Matched MeSH terms: Tooth Root/abnormalities; Tooth Root/drug effects*; Tooth Root/growth & development

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: Tooth Root/transplantation*

Racial variations in the extent of tooth root translucency in ageing individuals

Whittaker DK, Bakri MM

Arch Oral Biol, 1996 Jan;41(1):15-9.

PMID: 8833585

One hundred and ninety-eight single-rooted teeth from individuals aged 21-90 yr of Caucasian, Malay, Chinese Malay and Indian Malay origin were studied. Single or serial longitudinal sections of extracted teeth were cut following dye imbibition of patent dentinal tubules. The extent of sclerosis of apical dentinal tubules was assessed and correlated with the age of the individual. Correlation with age was higher in the Caucasian than the Malay races and within the Malaysian racial groups correlation with age was highest in the Malays and lowest in the Chinese. It is concluded that factors other than age may be important in the formation of sclerotic apical dentine in teeth of different racial origin. The effect of racial origin should be considered when using sclerosis as a means of age determination in forensic cases.

Matched MeSH terms: Tooth Root/ultrastructure*

A unit root test based on the modified least squares estimator

Wararit Panichkitkosolkul

Sains Malaysiana, 2014;43:1623-1633.

A unit root test based on the modified least squares (MLS) estimator for first-order autoregressive process is proposed and compared with unit root tests based on the ordinary least squares (OLS), the weighted symmetric (WS) and the modified weighted symmetric (MWS) estimators. The percentiles of the null distributions of the unit root test are also reported. The empirical probabilities of type I error and powers of the unit root tests were estimated via Monte Carlo simulation. The simulation results showed that all unit root tests can control the probability of type I error for all situations. The empirical power of the test is higher than the other unit root tests, and Apart from that, the and tests also provide the highest empirical power. As an illustration, the monthly series of U.S. nominal interest rates on three-month treasury bills is analyzed.

Matched MeSH terms: Tooth Root

Fulltext Surgical repositioning of an impacted and dilacerated central incisor: A case report

Venkiteswaran, Annapurny, Ha, Kien Onn

Compendium of Oral Science, 2016;3(1):33-37.

MyJurnal

This case report describes the management of an impacted and dilacerated upper permanent incisor in an 11 year old girl who also presented with a congenitally missing lateral incisor in the same quadrant. The two treatment options commonly chosen for the management of an impacted incisor are surgical exposure followed by orthodontic traction and extraction of the tooth itself. This case posed an extra challenge as the adjacent lateral incisor was congenitally missing. Instead of resorting to the use of dentures, an alternative treatment involving the surgical repositioning of the impacted tooth was done. This method not only satisfied the patient’s aesthetic requirement but ensured preservation of alveolar bone height and thickness in the upper anterior segment. Surgical repositioning of an impacted and/or dilacerated tooth can be considered as an alternative treatment option when surgical exposure and traction of the tooth is not possible.

Matched MeSH terms: Tooth Root

Fulltext Management of symptomatic intra-alveolar mid-root fracture with displaced and infected apical fragment

Varghese LL, Bhattacharya A, Sahu GK, Consul S

BMJ Case Rep, 2021 Feb 18;14(2).

PMID: 33602766 DOI: 10.1136/bcr-2020-239382

Matched MeSH terms: Tooth Root

Intracanal bisphosphonate does not inhibit replacement resorption associated with delayed replantation of monkey incisors

Thong YL, Messer HH, Zain RB, Saw LH, Yoong LT

Dent Traumatol, 2009 Aug;25(4):386-93.

PMID: 19459923 DOI: 10.1111/j.1600-9657.2008.00631.x

Progressive replacement resorption following delayed replantation of avulsed teeth has proved to be an intractable clinical problem. A wide variety of therapeutic approaches have failed to result in the predictable arrest of resorption, with a good long-term prognosis for tooth survival. Bisphosphonates are used in the medical management of a range of bone disorders and topically applied bisphosphonate has been reported to inhibit root resorption in dogs. This study evaluated the effectiveness of a bisphosphonate (etidronate disodium) as an intracanal medicament in the root canals of avulsed monkey teeth, placed before replantation after 1 h of extraoral dry storage. Incisors of six Macaca fascicularis monkeys were extracted and stored dry for 1 h. Teeth were then replanted after canal contamination with dental plaque (negative control) or after root canal debridement and placement of etidronate sealed in the canal space. A positive control of calcium hydroxide placed 8-9 days after replantation was also included. All monkeys were sacrificed 8 weeks later and block sections were prepared for histomorphometric assessment of root resorption and periodontal ligament status. Untreated teeth showed the greatest extent of root resorption (46% of the root surface), which was predominantly inflammatory in nature. Calcium hydroxide treated teeth showed the lowest overall level of resorption (<30% of the root surface), while the bisphosphonate-treated group was intermediate (39%). Ankylosis, defined as the extent of the root surface demonstrating direct bony union to both intact and resorbed root surface, was the lowest in the untreated control group (15% of the root surface), intermediate in the calcium hydroxide group (27%) and the highest in the bisphosphonate group (41%). Bony attachment to the tooth root was divided approximately equally between attachment to intact cementum and to previously resorbed dentin. Overall, bisphosphonate resulted in a worse outcome than calcium hydroxide in terms of both root resorption and ankylosis.

Matched MeSH terms: Tooth Root/pathology

Periodontal response to two intracanal medicaments in replanted monkey incisors

Thong YL, Messer HH, Siar CH, Saw LH

Dent Traumatol, 2001 Dec;17(6):254-9.

PMID: 11766092

Intracanal medicaments are recommended for use in replanted teeth to inhibit inflammatory root resorption. This study compared the effect of calcium hydroxide (Pulpdent) and a corticosteroid-antibiotic paste (Ledermix) on periodontal healing and root resorption following replantation. Incisors of eight Macaca fascicularis monkeys were extracted, stored dry for 15 min and replanted. After 11 days, root canals in two adjacent maxillary incisors were treated with one medicament and contralateral incisors with the other medicament, or left as untreated controls. Animals were sacrificed 8 weeks later and the teeth prepared for histomorphometric evaluation of periodontal ligament inflammation and root resorption. Periodontal ligament inflammation and inflammatory root resorption were markedly inhibited by both calcium hydroxide and corticosteroid-antibiotic relative to untreated controls. Replacement resorption was lowest in the corticosteroid-antibiotic group, and significantly (P<0.05) more normal periodontal ligament was present in this group (79.6%) than in calcium hydroxide and control groups (64.6% and 62.7%, respectively). Treatment with the corticosteroid-antibiotic inhibited inflammatory resorption and was slightly more effective than calcium hydroxide in producing a periodontal healing response.

Matched MeSH terms: Tooth Root/drug effects; Tooth Root/pathology

Double rooted mandibular canines--report of three cases

Teck LS

Dent J Malaysia Singapore, 1968 Feb;8(1):33-5.

PMID: 5248556

Matched MeSH terms: Tooth Root/abnormalities

Fulltext Ocular injuries and severe ocular surface diseases in Malaysia

Tan AK, Pall S

Med J Malaysia, 2011 Oct;66(4):284-5.

PMID: 22299542 MyJurnal

Matched MeSH terms: Tooth Root/transplantation*

Tooth mineralization stages as a diagnostic tool for assessment of skeletal maturity

Surendran S, Thomas E

Am J Orthod Dentofacial Orthop, 2014 Jan;145(1):7-14.

PMID: 24373650 DOI: 10.1016/j.ajodo.2013.09.007

The objective of this study was to determine whether dental calcification can be used as a first-level diagnostic tool for assessment of skeletal maturity.

Matched MeSH terms: Tooth Root/growth & development; Tooth Root/radiography

Fulltext Complicated crown root fracture treatment option: a case report

Sockalingam, S. Nagarajan M.P., Alida Mahyuddin

Archives of Orofacial Sciences, 2009;4(1):25-28.

MyJurnal

Complicated crown-root fractures are rare and often need complex treatment planning. This paper describes a simplified treatment option for a complicated crown root fracture that minimally encroached into the biologic region in a growing child without the need for surgery or orthodontic treatment.

Matched MeSH terms: Tooth Root

Diagnostic ability of computed tomography using DentaScan software in endodontics: case reports

Siotia J, Gupta SK, Acharya SR, Saraswathi V

Int J Comput Dent, 2011;14(4):321-34.

PMID: 22324223

Radiographic examination is essential in diagnosis and treatment planning in endodontics. Conventional radiographs depict structures in two dimensions only. The ability to assess the area of interest in three dimensions is advantageous. Computed tomography is an imaging technique which produces three-dimensional images of an object by taking a series of two-dimensional sectional X-ray images. DentaScan is a computed tomography software program that allows the mandible and maxilla to be imaged in three planes: axial, panoramic, and cross-sectional. As computed tomography is used in endodontics, DentaScan can play a wider role in endodontic diagnosis. It provides valuable information in the assessment of the morphology of the root canal, diagnosis of root fractures, internal and external resorptions, pre-operative assessment of anatomic structures etc. The aim of this article is to explore the clinical usefulness of computed tomography and DentaScan in endodontic diagnosis, through a series of four cases of different endodontic problems.

Matched MeSH terms: Tooth Root/injuries

Experimental determination of optimal force system required for control of anterior tooth movement in sliding mechanics

Sia S, Shibazaki T, Koga Y, Yoshida N

Am J Orthod Dentofacial Orthop, 2009 Jan;135(1):36-41.

PMID: 19121498 DOI: 10.1016/j.ajodo.2007.01.034

This study was designed to determine the optimum vertical height of the retraction force on the power arm that is required for efficient anterior tooth retraction during space closure with sliding mechanics.

Matched MeSH terms: Tooth Root/pathology

Radiographic artifact mimicking root fracture

Shanmuhasuntharam P

Oral Surg. Oral Med. Oral Pathol., 1993 Jul;76(1):131.

PMID: 8351112

Matched MeSH terms: Tooth Root/injuries*

A new coding system for root and canal morphology - an online survey from Peru

Salas H, Torres J, Pauro J, Ahmed HMA

Int Endod J, 2021 Jan;54(1):147-149.

PMID: 33351981 DOI: 10.1111/iej.13439

Matched MeSH terms: Tooth Root*

Root and canal morphology of maxillary premolar teeth in an Egyptian subpopulation using two classification systems: a cone beam computed tomography study

Saber SEDM, Ahmed MHM, Obeid M, Ahmed HMA

Int Endod J, 2019 Mar;52(3):267-278.

PMID: 30225932 DOI: 10.1111/iej.13016

AIM: To investigate the number of roots and root canal configurations using two coding systems and the root canal diverging and merging levels in extracted maxillary premolars in an Egyptian subpopulation using cone beam computed tomography (CBCT).

METHODOLOGY: A total of 700 maxillary premolars were examined using CBCT in an Egyptian subpopulation. The number of roots was identified, and root canal configurations were classified according to Vertucci's classification and a new system for classifying root and canal morphology. In addition, the position where roots bifurcated and the levels where canals merged or diverged were identified. Fisher's exact test and independent t-test were used for statistical analysis, and the level of significance was set at 0.05 (P = 0.05).

RESULTS: More than half of maxillary first premolars were double-rooted, and the majority of maxillary second premolars were single-rooted (P rooted samples had bifurcations in the middle of the root. According to the Vertucci classification, canal configuration type IV was the most common in both first and second maxillary premolars. According to the new system, the code 2 FP B1 P1 was the most common for maxillary first premolars, whilst 2 SP B1 P1 , 1 SP2 and 1 SP2-1 codes were the most common for maxillary second premolars. The three-canalled morphology in double- and three-rooted maxillary premolars had considerable variations. Root canal merging and diverging levels were comparable in both tooth types.

CONCLUSION: Maxillary premolars in this Egyptian subpopulation had a wide range of root and canal anatomical variations. Clinicians should be aware of where canals merge and diverge to facilitate the treatment of all canals. The new system for classifying canal morphology describes the root and canal configurations in a more accurate and practical manner compared to the Vertucci classification.

Matched MeSH terms: Tooth Root/anatomy & histology*

Fulltext Scanning Electron Microscopic Examination of Root Canal Walls of Deciduous Molars with Necrotic Pulp

Rusmah, M.

Ann Dent, 1995;2(1):-.

MyJurnal

The root canal walls of twenty -five deciduous molar teeth with exposed and necrotic pulps were examined using thescanning electronmicroscope. Immediately after extraction, all teeth were fixed in Kamosky's solution. The coronal portion of the tooth was sectioned at about 2mm above the enamel cemental junction.The mesial and distal roots were separat~d and either split in the mesio-distal or bucco-lingual direction. All specimens were prepared for SEM. Obsevations showed that all roots were infected with organisms consisting of cocciand short rods. Some of the coccihad penetrated the dentine layer. However, the distribution of organisms is. not uniform throughout thecanals. Bacterialinvasion ismostinthecoronal region and reduces towards the apical region: Accompanying bacterial invasion is root canal walls deterioration. The odontoblastic processes are the first to deteriorate followed by the predentine layer.

Matched MeSH terms: Tooth Root

Root Coverage of Palatal Recession Using Epithelial Embossed Connective Tissue: A Case Report

Rath A, Fernandes B, R PH, Varma S, Pavuluri AK

J Int Acad Periodontol, 2017 Jan 02;19(1):10-14.

PMID: 31473707

Labial and buccal gingival recession is a common finding in the adult population, which can occur due to various factors. When present, it can lead to an unesthetic appearance and can cause hypersensitivity. However, very limited literature is available regarding the incidence of palatal gingival recession. Many times it goes unnoticed during routine clinical examinations. Although there are no esthetic concerns in these regions, recession can cause sensitivity and pose a technical challenge in surgical correction because of poor accessibility and visibility. This case reports the treatment of a single palatal recession defect using an epithelial embossed connective tissue graft. The 12-month follow-up of the case showed significant root coverage (93.6%) and decreased sensitivity. The advantage of the harvested graft was that the connective tissue was not exposed, as it was tucked into the underlying flap, and the mucosal contour was maintained.

Matched MeSH terms: Tooth Root

Options to avoid the second surgical site: a review of literature

Ramachandra SS, Rana R, Reetika S, Jithendra KD

Cell Tissue Bank, 2014 Sep;15(3):297-305.

PMID: 24002077 DOI: 10.1007/s10561-013-9395-8

As esthetics gain importance, periodontal plastic surgical procedures involving soft tissue grafts are becoming commoner both around natural teeth as well as around implants. Periodontal soft tissue grafts are primarily used for the purpose of root coverage and in pre-prosthetic surgery to thicken a gingival site or to improve the crestal volume. Soft tissue grafts are usually harvested from the palate. Periodontal plastic surgical procedures involving soft tissue grafts harvested from the palate have two surgical sites; a recipient site and another donor site. Many patients are apprehensive about the soft tissue graft procedures, especially the creation of the second/donor surgical site in the palate. In the past decade, newer techniques and products have emerged which provide an option for the periodontist/patient to avoid the second surgical site. MucoMatrixX, Alloderm(®), Platelet rich fibrin, Puros(®) Dermis and Mucograft(®) are the various options available to the practicing periodontist to avoid the second surgical site. Use of these soft tissue allografts in an apprehensive patient would decrease patient morbidity and increase patient's acceptance towards periodontal plastic surgical procedures.

Matched MeSH terms: Tooth Root/surgery*

Displaying publications 1 - 20 of 83 in total