6,049 results match your criteria Quintessence International [Journal]
Quintessence Int 2018 Nov 8:2-13. Epub 2018 Nov 8.
Background: Bulimia nervosa is an eating disorder resulting in an intended weight loss due to decreased food intake, induced vomiting, or hyperactivity, and is observed frequently between 12 and 25 years of age. One of the complications is early tooth loss. Moreover, since bulimia nervosa patients suffer from increased atrophy of the alveolar processes, oral rehabilitation even with short dental implants may be impossible. Read More
Quintessence Int 2018 Nov 8:2-10. Epub 2018 Nov 8.
Successful intraoral rehabilitation for patients with head and neck cancer can be extremely challenging to both the patient and the physician due to anatomical, functional, and esthetic changes from the cancer and its treatment. The measures with optimal oral hygiene to prevent or minimize the sequelae of cancer treatments are fundamental to preservation of function and avoidance of complications of therapy. In patients with loss of teeth, endosseous (dental) implants offer an option to improve intraoral rehabilitation. Read More
Quintessence Int 2018 Nov 8:2-8. Epub 2018 Nov 8.
Objective: Root canal obturation still is a relevant research topic and patients spend substantial amounts of financial resources for this step of endodontic treatment. Three experiments were conducted challenging the necessity of root canal obturation.
Method And Materials: Applying micro computed tomography, the volume of dentin tubules that cannot be instrumented during root canal therapy was determined. Read More
Quintessence Int 2018 Nov 8:2-9. Epub 2018 Nov 8.
Squamous cell carcinoma (SCC) is an aggressive tumor and represents the most common oral malignancy found by dental health care providers. Timely detection is paramount to reduce patient comorbidities of regional and distant metastases and improve survival rates. To augment recognition of early stage of gingival SCC (GSCC), this article features the somewhat innocuous clinical findings in a 60-year-old female. Read More
Quintessence Int 2018 Nov 8:2-11. Epub 2018 Nov 8.
Objective: This study investigated the effect of framework design and modification of porcelain firing cycle on the occurrence of fractures of metal-ceramic and bilayered zirconia crowns after cyclic loading.
Method And Materials: Twenty-four zirconia crowns with two different apicocoronal incisal veneering porcelain lengths (ZS = 2.0 mm and ZL = 4. Read More
Quintessence Int 2018 Nov 8:2-11. Epub 2018 Nov 8.
Objective: The aim of this article is to investigate, study, and summarize cone beam computed tomography (CBCT)-related guidelines offered by relevant organizations and associations within North America to provide the dental practitioner a clearer direction on the practice of CBCT-related procedures in North America.
Data Sources: Scientific databases including PubMed, Science Direct, Scopus, MedLine, and Web of Science were used for the search of relevant literature on the CBCT guidelines developed in North America. In addition, the World Wide Web was searched for comparative CBCT guidelines nationally or internationally using the same search strategies. Read More
Quintessence Int 2018 ;49(10):855-861
A growing patient population is adolescents and young adults who have had one or more serious medical problems and are aging into adulthood. This group of patients has unique medical needs, which has resulted in the development of a specialized area of medicine: transitional care medicine. The case reviews of two of these patients are described. Read More
Quintessence Int 2018 ;49(10):789-798
This article describes single-retainer resin-bonded fixed dental prostheses (RBFDPs) as an excellent alternative to orthodontic space closure or tooth replacement with implants or conventional fixed dental prostheses for congenitally and traumatically missing anterior teeth. Although the treatment with RBFDPs is technique sensitive, it is extremely reliable given a correct indication and adequate adhesive procedures. Read More
Quintessence Int 2018 ;49(10):779-780
Quintessence Int 2018 ;49(10):849-854
Background: Numerous publications have reported on migraines misdiagnosed as endodontic pathologies. However, reports on the effect that concurrent migraine and endodontic pathology can have on each other and how their respective treatments can also affect each other are limited.
Clinical Presentation: Two cases are reported that presented with both migraine and periapical pathology. Read More
Quintessence Int 2018 ;49(10):781-786
Objective: This study evaluated the wear of computer-aided design/computer-assisted manufacture (CAD/CAM) burs and the morphologic changes after a number of millings.
Method And Materials: Diamond burs (cylinder and step-bur) were divided into four milling groups: zero millings (G0); 15 millings (G1); 25 millings (G2); and 35 millings (G3). Seventy-five premolar crowns were milled using the Cerec Compact Milling unit and VitaBlock Mark II. Read More
Quintessence Int 2018 ;49(10):809-813
Tooth-colored resin-based bracket bonding agents are used to fix orthodontic brackets to teeth as inconspicuously as possible. However, after debonding the brackets, these tooth-colored bonding remnants remain on the tooth surface and must be removed to prevent adverse sequelae. Various techniques can be used, all of which cause varying damage to the tooth structure, as the transition between composite and enamel is visually difficult to detect. Read More
Quintessence Int 2018 ;49(10):841-847
Objective: The aim of this retrospective study was to measure the sinus membrane's dimensional changes following maxillary sinus augmentation via a lateral approach, and to examine the variables affecting changes in the membrane's thickness.
Method And Materials: Sixty-six sinuses corresponding to 50 patients (15 males and 35 females) who underwent lateral wall maxillary sinus augmentation (34 unilateral and 16 bilateral) were retrospectively evaluated. The sinus membrane thickness was measured on cross-sectional cone beam computed tomography (CBCT) scans which were performed prior to and 9 to 11 months' post maxillary sinus augmentation. Read More
Quintessence Int 2018 ;49(10):831-840
Objective: The study aimed to assess the effect of topical applications of an amino acid and sodium hyaluronate gel after mandibular third molar extraction.
Method And Materials: 136 patients requiring mandibular third molar extraction were enrolled. An amino acid and sodium hyaluronate gel was applied to the sockets of patients in the test group immediately following the extraction. Read More
Sensors (Basel) 2018 Sep 18;18(9). Epub 2018 Sep 18.
National Defense Engineering College, Army Engineering University of PLA, Nanjing 210007, China.
Gesture recognition acts as a key enabler for user-friendly human-computer interfaces (HCI). To bridge the human-computer barrier, numerous efforts have been devoted to designing accurate fine-grained gesture recognition systems. Recent advances in wireless sensing hold promise for a ubiquitous, non-invasive and low-cost system with existing Wi-Fi infrastructures. Read More
Quintessence Int 2018 ;49(9):761-768
Objective: The gingival tissues surrounding the maxillary anterior teeth play a pivotal role in fostering a beautiful smile. The gingival zenith position (GZP) and its spatial orientation in the mesiodistal and apicocoronal direction can provide a valuable reference point. The present study was undertaken to evaluate the GZP and gingival zenith line (GZL) in maxillary anterior teeth in different age groups and genders. Read More
Quintessence Int 2018 ;49(9):755-760
The concept and application of a temporomandibular joint (TMJ) relationship identified as centric relation (CR) has changed significantly over the past century. Originally proposed as a biologically reasonable position where maxillary and mandibular dentures should occlude, it later was applied to the dentate population as well. The term "ideal" was used by the gnathologic dental community as they sought to define the exact details of CR in terms of condyle-fossa relationships. Read More
Quintessence Int 2018 ;49(9):733-743
Objectives: An implant with an acid-etched fixture surface and internal-hex collar may achieve greater osseointegration. The goal of this research was to study the effects on long-term bone healing of fixture surface acid-etching and machined collar design.
Method And Materials: Three two-part implant types were compared: standard Brånemark (with an external-hex 1. Read More
Quintessence Int 2018 ;49(9):719-732
The purpose of this topic review is to give a general overview of gingival retraction agents used during prosthodontic treatment, and the possible difficulties connected to them that may be faced by the dentist. Hemostatic agents are important for successful gingival retraction and in achieving hemostasis. However, these agents may show numerous negative effects on the prosthodontic treatment and oral tissues of which the practicing dentist must be aware, and which will be elucidated in this review. Read More
Quintessence Int 2018 ;49(9):687-688
Quintessence Int 2018 ;49(10):801-807
Objective: The mere osseointegration of an implant should no longer be considered a satisfactory criterion for success. Tooth extraction itself and, more importantly, possible local comorbidities such as periodontal or endodontic diseases, cause a reduction in the gingival volume of the edentulous site due to bone atrophy. This reduced volume must be treated and resolved to obtain a satisfactory esthetic result, which is an essential factor for successful implant rehabilitation. Read More
Zhongguo Zhen Jiu 2018 Aug;38(8):847-51
College of Integrated Chinese and Western Medicine, Southwest Medical University, Luzhou 646000, Sichuan Province, China; College of Acupuncture-Moxibustion and Tuina, Chengdu University of TCM, Chengdu 610073, Sichuan Province.
In order to inherit the ancient acupuncture reinforcing and reducing methods and provide references to study those methods，this paper is based on much literature of reinforcing and reducing methods by twirling the needle and "rotating the needle to the left for reinforcing, to the right for reducing". With - theory of traditional Chinese medicine, including descending and ascending of -, the principle of "" and "", and (quintessence of universe) and the Eight Diagrams, we analyse reinforcing and reducing methods by twirling the needle of "rotating the needle to the left for reinforcing, to the right for reducing". Besides, combined with modern experimental and clinical studies, the feasibility and efficacy of twisting reinforcing and reducing are demonstrated. Read More
Ambix 2018 Aug 24;65(3):232-249. Epub 2018 Aug 24.
a King's College, University of Cambridge , UK.
This essay reinserts friars into the story of alchemy and medicine in late medieval England. Much of the evidence for the activity of friars, mostly Franciscans, is to be found in a Latin text compiled in 1416-1425, the Tabula medicine. Here friars appear as sources for remedies, and a significant number of these remedies are alchemical. Read More
Quintessence Int 2018 ;49(8):653-662
Objective: Removal of third molars (3Ms) is one of the most common surgical procedures performed by dental surgeons. 3Ms that are associated with pathologic changes such as infection, nonrestorable caries lesions, cysts, tumors, and destruction of adjacent teeth and bone are under consensus for their removal. However, debate exists regarding the prophylactic removal of asymptomatic impacted 3Ms. Read More
Quintessence Int 2018 ;49(8):605
Theory Biosci 2018 Nov 31;137(2):197-206. Epub 2018 Jul 31.
Institute of Environmental Sciences, Jagiellonian University, Gronostajowa 7, 30-387, Kraków, Poland.
Research on symbiotic communities (microbiomes) of multicellular organisms seems to be changing our understanding of how species of plants and animals have evolved over millions of years. The quintessence of these discoveries is the emergence of the hologenome theory of evolution, founded on the concept that a holobiont (a host along with all of its associated symbiotic microorganisms) acts a single unit of selection in the process of evolution. Although the hologenome theory has become very popular among certain scientific circles, its principles are still being debated. Read More
Quintessence Int 2018 ;49(8):625-634
Objective: To evaluate the efficacy of in-office tooth bleaching following application of either ozone (O3) or hydrogen peroxide (H2O2).
Method And Materials: 32 participants were randomly distributed into two groups (n = 16 each). Participants' maxillary anterior teeth were treated with ozone (produced via a healOzone X4 device; Curozone) for 60 seconds in Group 1, or with 38% H2O2 for 20 minutes in Group 2. Read More
Quintessence Int 2018 ;49(9):699-707
Objective: In this prospective case series, the effects of flapless intentional replantation (IR) with root surface conditioning with enamel matrix derivative (EMD) was evaluated for the treatment of periodontally-endodontally involved hopeless teeth.
Method And Materials: A total of 17 teeth (17 patients, aged 40 to 73) with ≥ 10 mm attachment loss and radiographic bone loss to the apex were included in the study. The affected teeth were atraumatically extracted using a flapless approach, then granulation tissues, calculus, and necrotic cementum on the root surfaces were removed. Read More
Quintessence Int 2018 ;49(8):663-671
Objective: To present an improved, accurate, and efficient method for planning and preparing an artificial socket for autotransplantation, by using a three-dimensional (3D) surgical guide and a replica of the transplanted donor tooth. The guide and the tooth replica were fabricated using a computerized 3D simulation. A case treated with this approach is presented. Read More
Quintessence Int 2018 ;49(9):745-753
Objective: Surgical time prediction is an important factor to plan both clinical and organizational aspects of mandibular impacted third molar extraction. Many classifications have been proposed over the years, but their accuracy in surgical time prediction remained questionable. The present study introduced a modification of Juodzbalys and Daugela (JD) classification, and had the aim to validate its effectiveness in predicting the duration of the surgery. Read More
Quintessence Int 2018 ;49(8):607-613
Objective: The purpose of this study was to evaluate the impact of glide path preparation on the incidence of dentinal defects after preparation of severely curved canals using ProTaper Next, F6 SkyTaper, and One Shape instruments.
Method And Materials: One hundred and forty human mandibular molars with mesiobuccal canals with angles of curvatures ranging between 25 and 35 degrees and radii ranging between 4 and 9 mm were assigned to seven homogenous groups (n = 20 teeth per group). In half of the teeth of each of the seven groups a manual glide path (size 15) was created prior to instrumentation. Read More
Quintessence Int 2018 ;49(9):689-697
Objective: This in-vitro study evaluated the antibacterial efficacy of sonic and ultrasonic irrigation with either intermittent or continuous flush in root canals infected with Enterococcus faecalis.
Method And Materials: Seventy single-rooted, extracted teeth with straight root canals were prepared with FlexMaster NiTi-instruments, sterilized, inoculated with E faecalis and incubated for 72 hours. Sixty roots were randomly divided into four experimental groups as well as into infection and sterile controls (n = 10 each). Read More
Quintessence Int 2018 ;49(9):709-717
Objective: Many studies have investigated the effect of implant number on the performance of implant-supported overdentures (ISO), but few have focused on denture movement. This in-vitro study aims to investigate the influence of implant number on the movement of mandibular ISO under biting force.
Method And Materials: An edentulous mandibular cast and 12 overdentures (n = 12) were fabricated, and a locator attachment system with blue nylon inserts was chosen for this study. Read More
Quintessence Int 2018 ;49(8):645-651
Objective: To evaluate the survival and complication rate of 7-mm short, parallel-walled, conical-connection implants in daily practice.
Method And Materials: This multicenter retrospective study included 219 consecutive patients who received 323 implants. Indication was limited vertical bone height preventing placement of implants longer than 7 mm. Read More
Quintessence Int 2018 ;49(8):635-643
Objective: A randomized trial to assess clinical and radiographic outcomes of short versus standard dental implants placed with concomitant vertical bone augmentation.
Method And Materials: Patients requiring dental implants were randomized to receive either 6-mm implants (experimental) or 10-mm implants with vertical augmentation (control). Custom load-bearing healing abutments were connected to allow for indirect resonance frequency analysis measurements. Read More
Quintessence Int 2018 ;49(8):615-624
This case report describes the long-term follow-up of a patient with localized aggressive periodontitis over a 30-year period. A 16-year-old woman was referred for periodontal assessment after starting orthodontic treatment. The patient was treated initially by combined nonsurgical and antimicrobial therapy, and autotransplantation of maxillary third molars in place of maxillary first molars, followed by a regular supportive periodontal treatment program. Read More
Quintessence Int 2018 ;49(8):673-679
The case of an 18-year-old woman with generalized short root anomaly (SRA) is presented, and the clinical management and challenges associated with this rare condition are discussed. The patient was referred for restoration of the edentulous maxillary left anterior region. Due to the SRA, the patient had previously received limited orthodontic treatment for the ectopic maxillary canines. Read More
Quintessence Int 2018 ;49(7):589-598
Objective: To compare postoperative pain associated with palatal and tuberosity donor sites for soft tissue grafting, and to evaluate the outcomes in both the donor and recipient sites.
Method And Materials: Twenty healthy nonsmokers requiring bilateral soft tissue grafts were recruited for the study. For the 10 patients who required free gingival graft (FGG), 10 epithelialized grafts were taken from the tuberosity and 10 from the palate. Read More
Quintessence Int 2018 ;49(7):581-587
Objective: The purpose of this retrospective study was to determine the efficacy of Invisalign in a large sample of patients compared to fixed appliances.
Method And Materials: The test group consisted of 100 patients treated with Invisalign compared with a control group treated with conventional fixed appliances matched for sex, age, and initial severity of malocclusion based on the amount of anterior dental crowding (Little Index) and the Peer Assessment Rating (PAR Index) scores. The retainer used was a 0. Read More
Quintessence Int 2018 ;49(7):549-555
Objective: Interchangeable articulators are crucial for a precise clinical outcome. Lack of interchangeability will affect the accuracy of the occlusion of prosthetic restorations. The objective of this study was to evaluate the interchangeability of KaVo PROTARevo articulators. Read More
Quintessence Int 2018 ;49(7):521-533
According to the Fifth German Oral Health Study, the caries experience in the German population is declining sharply. The number of teeth still present at an advanced age has also increased significantly in recent decades. This shows a clear trend towards long-term tooth preservation - possibly with fixed dental prostheses - which is further supported by the possibility to place implants to increase the number of abutments. Read More
Quintessence Int 2018 ;49(7):519-520
Quintessence Int 2018 ;49(7):567-579
Objective: This article presents a methodology of a comprehensive score for assessment and monitoring of dental implant success from the peri-implant tissue perspective. It involves only standard and minimally invasive techniques accessible to general dental practices, without the need for special equipment.
Methods And Materials: The proposed score methodology combines existing consensual global knowledge regarding aspects of dental implant success with the standard examination tools accepted for regular recall assessment. Read More
Quintessence Int 2018 ;49(7):543-548
This case report presents long-term results following horizontal root fracture of both maxillary central incisors in a 19-year-old woman with aggressive periodontitis. Due to extensive marginal bone loss and the close proximity of the fracture lines to the bottoms of the periodontal pockets, the prognosis of both teeth was uncertain at the time of the accident. Nevertheless, a conservative treatment strategy consisting of splinting and nonsurgical periodontal therapy was initiated. Read More
Quintessence Int 2018 ;49(7):557-566
Objective: The aim of this study was to assess the bleaching efficacy and impact on psychosocial and esthetics self-perception of a low-concentration (6%) hydrogen peroxide (H2O2) gel compared with a conventional (37.5%) H2O2 gel when used as an in-office treatment.
Method And Materials: In total, 35 participants received two sessions of three 12-minute applications of treatment with 37. Read More
Quintessence Int 2018 ;49(6):497-509
In chronic periodontitis and peri-implantitis, cells of the innate and adaptive immune systems are involved directly in the lesions within the tissues of the patient. Absence of a periodontal ligament around implants does not prevent a biologic process similar to that of periodontitis from affecting osseointegration. Our first focus is on factors in the biology of individuals that are responsible for the susceptibility of such individuals to chronic periodontitis and to peri-implantitis. Read More
Quintessence Int 2018 ;49(6):437-444
Objective: The aim of this in-vitro study was to investigate the marginal and internal fit of zirconia copings fabricated by five CAD/CAM (computer-aided design/computer-assisted manufacture) systems.
Method And Materials: A typodont mandibular right first molar was prepared according to ideal parameters for a zirconia crown, scanned digitally, and 100 identical resin dies fabricated by 3D printing. Samples were randomly divided into five groups and sent to CAD/CAM systems for zirconia copings (A, Ceramill-Motion 2, Amann Girrbach; B, Weiland, Ivoclar Vivadent; C, Cerec, Ivoclar Vivadent; D, Prettau Zirconia, Zirkonzahn; E, Cad4dent). Read More
Quintessence Int 2018 ;49(6):435
Quintessence Int 2018 ;49(6):453-467
Objective: This systematic review analyzes existing literature on the clinical efficacy of air polishing devices (APDs), discussing the evidence-based data available for justifying their use as an alternative to conventional periodontal debridement in supportive periodontal therapy. The main objective of the review was to assess whether APD was as equally efficient or superior in obtaining successful treatment outcomes when compared with conventional methods.
Data Sources: Following PRISMA guidelines, a systematic literature search of articles in English, up to December 2016, was conducted using PubMed, Cochrane, and Medline. Read More
Quintessence Int 2018 ;49(6):487-496
Objectives: This systematic review aims to determine the impact of temporomandibular disorder (TMD) therapeutic interventions on patients' oral health related quality of life (OHRQoL) and to recommend approaches that improve QoL.
Data Sources: A systematic search of the literature was performed between January 2007 and October 2017 to identify articles on TMD interventions and OHRQoL. Randomized controlled trials, and retrospective and prospective cohort studies that mentioned dedicated tools for measurement of OHRQoL changes in TMD patients after therapeutic interventions were included. Read More