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tooth extraction

Papatpong Phermsang-Ngarm, Chairat Charoemratrote
OBJECTIVES: To compare tooth movement achieved, time required for alignment, root resorption, and alveolar bone thickness changes during initial dental alignment between groups treated with 0.012-inch preformed heat-activated or customized nickel titanium (NiTi) archwires. MATERIALS AND METHODS: Thirty-two subjects (mean age 19.8 ± 1.7 years) with severe crowding of maxillary anterior teeth had premolar extractions and were randomly allocated into control and experimental groups receiving preformed heat-activated and customized NiTi archwires, respectively...
March 21, 2018: Angle Orthodontist
Chang-Hun Han, Kwang-Bum Park, Francesco Guido Mangano
OBJECTIVE: In the anterior regions, the resorption of the buccal bone after tooth extraction leads to a contraction of the overlying soft tissues, resulting in an esthetic problem, particularly with immediate implant placement. In the socket shield technique, the buccal root section of the tooth is maintained, to preserve the buccal bone for immediate implant placement. The aim of this prospective study was to investigate the survival, stability, and complication rates of implants placed using a "modified" socket shield technique...
March 20, 2018: Journal of Craniofacial Surgery
Elzbieta Klimuszko, Karolina Orywal, Teresa Sierpinska, Jarosław Sidun, Maria Golebiewska
Enamel is the structure that covers the entire clinical crown of a tooth. It enables to chew and crush food, and gives a final shape to the crowns of teeth. To evaluate calcium and magnesium contents in tooth enamel and analyse relationships between the study minerals extracted human permanent teeth were cut at every 150 microns and subjected into acid biopsy. The amounts of calcium and magnesium were assessed in the laboratory using atomic absorption spectroscopy with an air/acetylene flame. The lowest calcium and magnesium contents were found on the enamel surface of the teeth...
March 19, 2018: Odontology
Sarah L Sheu
Tranexamic acid is a procoagulant agent that is approved by the US Food and Drug Administration for treatment of menorrhagia and to prevent hemorrhage in patients with hemophilia undergoing tooth extractions. Through its inhibitory effects on the plasminogen activation pathway, tranexamic acid also mitigates the UV radiation-induced pigmentation response. Systemic tranexamic acid has consistently been reported as an effective treatment of melasma, though its broad use may be limited by the risk for thromboembolism...
February 2018: Cutis; Cutaneous Medicine for the Practitioner
Elsa Garot, Alice Denis, Yves Delbos, David Manton, Mihiri Silva, Patrick Rouas
OBJECTIVES: Molar Incisor Hypomineralisation (MIH) and Hypomineralised Second Primary Molars (HSPM) involve qualitative structural developmental anomalies of tooth enamel affecting the first permanent molars (and often incisors) and the second primary molars, respectively. A putative relationship between HSPM and MIH has been reported in the scientific literature. The aim was to determine whether children with HSPM are more likely to develop MIH. SOURCE: A systematic search using PubMed/Medline, Embase and Cochrane Library electronic databases for publications from 2001 to August 2017 investigating the link between MIH and HSPM was undertaken...
March 14, 2018: Journal of Dentistry
Gülşah Uslu, Taha Özyürek, Koray Yılmaz, Mustafa Gündoğar, Gianluca Plotino
INTRODUCTION: The purpose of this study was to investigate the amount of apically extruded debris by Reciproc Blue (REC Blue; VDW, Munich, Germany), HyFlex EDM (HEDM; Coltene/Whaledent, Altstätten, Switzerland), and XP-endo Shaper (XPS; FKG Dentaire SA, La Chaux-de-Fonds, Switzerland) files during root canal preparation at body temperature. METHODS: Sixty extracted single-rooted mandibular premolar human teeth were randomly assigned to 3 groups (n = 20). The canals were instrumented using 1 of the following instruments: REC Blue, HEDM, or XPS...
March 14, 2018: Journal of Endodontics
Sonntana Seang, Prasit Pavasant, Chalida N Limjeerajarus
INTRODUCTION: Angiogenesis is a key determinant in dental pulp regeneration. Iloprost is a synthetic prostacyclin that promotes angiogenesis. A three-dimensional culture that mimics the in vivo condition has been used in tissue engineering. This study investigated the effect of iloprost on promoting dental pulp angiogenesis by using the tooth slice organ culture system. METHODS: Tooth slices with intact pulp tissue were cut from molars extracted from 12 patients...
March 14, 2018: Journal of Endodontics
Zhejun Wang, Ya Shen, Markus Haapasalo
INTRODUCTION: Conventional endodontic treatment includes instrumentation of the canals in most cases to size #25/.06 or larger, which changes the original canal wall anatomy. In recent years, energy-driven equipment, such as photon-induced photoacoustic streaming (Fotona LLC, Dallas, TX) and a multisonic GentleWave system (Sonendo Inc, Laguna Hills, CA), have been introduced to facilitate cleaning of minimally instrumented canals or even uninstrumented canals. The purpose of this study was to examine root canal wall anatomy in premolar teeth cleaned by a noninstrumentation method after #10 K-file patency examination...
March 14, 2018: Journal of Endodontics
Ferdinand Vogt, Martin Gosau, Theodor Fischlein, Giuseppe Santarpino
No abstract text is available yet for this article.
March 15, 2018: Minerva Cardioangiologica
Tabassum Ahsan Qadeer
Orthodontic alignment of un-erupted dilacerated teeth is challenging, as the bent roots resist forces applied to move them through the bone. Various treatment options are now available to treat this condition including providing prosthesis after extractions and apicectomies. However, to maintain alveolar bone in the area of the un-erupted tooth, especially if the involved tooth is in the anterior segment, the ideal treatment would be to try and bring the tooth in the arch orthodontically. Treatment requires increased time duration, compliance of the patient, and consistent force mechanics...
March 2018: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
Mai Ishimiya, Hiroyuki Nakamura, Yutaka Kobayashi, Moeko Noguchi-Shinohara, Chiemi Abe, Chiaki Dohmoto, Yoshihisa Ikeda, Kahori Tokuno, Kazuhiro Ooi, Masami Yokokawa, Kazuo Iwasa, Kiyonobu Komai, Shuichi Kawashiri, Masahito Yamada
Although several studies have demonstrated a potential correlation of dietary patterns with cognitive function, the relationship between tooth loss and dietary patterns and cognitive function have not been identified. In this cross-sectional study, we used a reduced rank regression (RRR) analysis, a technique used previously to observe dietary patterns based on the intakes of nutrients or levels of biomarkers associated with the condition of interest, to identify tooth loss-related dietary patterns and investigate the associations of such patterns with cognitive impairment in 334 community-dwelling Japanese subjects aged ≥ 60 years...
2018: PloS One
Mothanna K AlRahabi, Hani M Ghabbani
Bisphosphonates are stable structural analogs of pyrophosphate, which suppress the activity of osteoclasts, leading to decreased bone resorption. They are essential medications in the treatment of osteoporosis. Osteonecrosis of the jaw is a serious adverse effect of bisphosphonate therapy. The prevalence of bisphosphonate-related osteonecrosis of the jaw varies from 0% to 28%, and it can be triggered by dental extraction and trauma. Root canal therapy can delay, or even eliminate, the need for tooth extraction, and therefore, may reduce the risk of bisphosphonate-related osteonecrosis of the jaw...
March 2018: Saudi Medical Journal
Li Feng, Haiming Wang, Ming Lin
This study compared the effects of tooth extractions under novel painless single tooth anesthesia (STA) and conventional anesthesia on elderly patients with periodontal diseases, and the impact of painless STA on clinical indicators of the patients. Elderly patients (n=116) with periodontal diseases who were treated in Jinan Central Hospital were selected to undergo extraction operation on loose teeth; all the patients were randomly divided into two groups. The tooth extraction operations were performed after painless STA and cartridge anesthesia; the effects of the tooth extraction operations and the operation time were recorded; Visual Analogue Scale (VAS), Kuttner facial expression scale, Frankl treatment compliance scale and Houpt behavior rating scale were utilized to assess and record the clinical indicators of the patients during the operations; the impacts of the two anesthesia techniques on the effect of the tooth extraction of patients with periodontal diseases were comprehensively analyzed...
March 2018: Experimental and Therapeutic Medicine
David Anssari Moin, Bassam Hassan, Daniel Wismeijer
PURPOSE: To evaluate the feasibility of a commercially available immediate root analog implant system Replicate (Natural Dental Implants). MATERIALS AND METHODS: Five consecutive patients in need of an implant in the premolar region were recruited for this pilot study. Following clinical examination, a cone beam computed tomography scan was made and the dental impressions digitized. On the basis of the superimposition of these datasets, a three-dimensional (3D) envelope was created for the selected tooth...
March 2018: International Journal of Oral & Maxillofacial Implants
Francesco Amato, Giorgio Polara, Giorgio Alfredo Spedicato
PURPOSE: The aim of this study was to evaluate the buccopalatal volumetric tissue change that occurs following flapless single-tooth immediate extraction placement in the esthetic area and to analyze the role of four different variables. MATERIALS AND METHODS: Patients in need of a single-tooth replacement in the anterior maxillary or mandibular area (premolar to premolar) were recruited for the study. Patients were treated using four different therapeutic modalities: group 1 (healing abutment), group 2 (healing abutment + bone graft), group 3 (provisional restoration), and group 4 (provisional + bone graft)...
March 2018: International Journal of Oral & Maxillofacial Implants
Zeev Ormianer, Jonathan Block, Shlomo Matalon, Jerry Kohen
PURPOSE: The objective of this study was to assess whether long-term implant survival rates and bone loss in patients with moderately controlled type 2 diabetes is similar to the rates reported in the nondiabetic population. MATERIALS AND METHODS: This retrospective observational study utilized patient medical records from a general practitioner's dental office. The records of patients who had moderately controlled type 2 diabetes with hemoglobin A1C (HbA1c) up to 8% and glucose level below 150 mg/dL were reviewed, as patients with HbA1c up to 7% are considered to be well-controlled type 2 diabetes...
March 2018: International Journal of Oral & Maxillofacial Implants
Youngil Kwon, Hyunjung Ko, Soojung Kim, Miri Kim
BACKGROUND/AIM: Continuous research efforts have been focusing on promoting healing of delayed replantation of avulsed teeth. The aim of this in vivo study was to assess the effect of cathepsin K inhibitor surface treatment on delayed tooth replantation.Materials and Methods Thirty-four premolar roots of four beagle dogs were extracted and conventional root canal treatment was performed. The canals were filled with gutta-percha and cement. All extracted teeth were air-dried for 1 h. Teeth were divided into two groups according to the root surface treatment prior to replantation: control (n = 13) and cathepsin K inhibitor (n = 21)...
March 13, 2018: Dental Traumatology: Official Publication of International Association for Dental Traumatology
Cristiano Tomasi, Mauro Donati, Denis Cecchinato, Isacco Szathvary, Enrico Corrà, Jan Lindhe
OBJECTIVE: To examine if (i) characteristics of the fresh extraction socket site influenced subsequent dimensional alterations and (ii) placement of deproteinized bovine mineral in the socket affected volumetric change during healing. MATERIALS AND METHODS: Twenty seven subjects and 28 extraction sites were included. Immediately after the removal of the tooth and after 6 months of healing, stone and virtual models of the jaw were produced. A cone beam computerized tomography scan was obtained immediately after extraction and the thickness of the buccal bone wall at the extraction site was measured...
March 13, 2018: Clinical Oral Implants Research
Mohamed Makhlouf, Amr Aboul-Ezz, Mona Salah Fayed, Hend Hafez
BACKGROUND: The current study was carried out to compare the amount of tooth movement during canine retraction comparing two different retraction mechanics; friction mechanics represented by a NiTi closed coil spring versus frictionless mechanics represented by T - loop, and their effect on root resorption using Cone Beam Computed Tomography (CBCT). METHOD: Ten patients were selected in a split-mouth study design that had a malocclusion that necessitates the extraction of maxillary first premolars and retraction of maxillary canines...
February 15, 2018: Open Access Macedonian Journal of Medical Sciences
Sang-Joun Yu, Yoon Seon Lee, Han-Wool Choung, Yeoung-Hyun Park, Byung-Ock Kim, Joo-Cheol Park
Preameloblast-conditioned medium (PACM) has been reported as a potent dentin regenerative material, but its effects as a mixture on periodontal regeneration and the role of CPNE7 in PACM are not known. The purpose of this study is to evaluate the histologic and histomorphometric effects of preameloblast-conditioned medium (PACM) and CPNE7 on periodontal tissue healing in dogs. Seventy-two mandibular premolar roots from ten dogs were extracted and randomly divided into six groups (n = 12 each): (1) positive control group; (2) negative control group; (3) cementum-removed and PACM-treated group; (4) cementum-preserved and PACM-treated group; (5) CPNE7-inactivated PACM-treated group; and (6) recombinant CPNE7-treated group...
March 10, 2018: Journal of Molecular Histology
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