Curd Bollen

Curd Bollen
Ulster University · College of Medicine & Dentistry

Professor Implant Dentistry

About

54
Publications
15,718
Reads
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5,838
Citations
Introduction
Curd Bollen is professor implant dentistry at the College of Medicine & Dentistry, Ulster University in Birmingham (UK). He is consultant for Novodent® and CowellMedi® and honorary fellow and ambassador of the CleanImplant Foundation. Moreover, he is ambassador (UK & NL) for the European Academy for Ceramic Implantology (EACIm). He currently is also director of Mondcentrum Eyckholt (The Netherlands). Since 2022 he is head of the Advanced Implant Diploma at Tipton Training (UK).
Additional affiliations
January 2008 - present
Mondcentrum Eyckholt
Position
  • Research Director

Publications

Publications (54)
Article
Full-text available
In dieser Fallserie wird ein synthetisches Ki-Transplantatmaterial als zuverlässige Alternative zu autologem Knochen, bei direktem Sofortimplantat in Extraktionsalveolen im (vorderen) Oberkiefer anhand von sieben Patientenfällen vorgestellt. Die Sofortimplantation wurde hierbei als Behandlungsoption gewählt. Aufgrund der deutlichen Unterschiede in...
Article
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In these three different cases, synthetic putty graft material has proven to be a reliable alternative to autologous bone for implant placement, directly into the anterior extraction socket of the maxilla. This study presents three different patients who require implants in the anterior maxilla. Immediate implant placement was the treatment solutio...
Article
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Dental implants have helped to improve the quality of life for our patients. The material of choice for implants currently remains titanium type IV, of which the mechanical and biological properties have been proven (Adell et al, 1990). Yet, this material is not exempt from complications.
Article
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The use of ceramic implants has been on the rise in recent years. More and more dental clinicians add this option in their therapy concepts. Also, more and more implant companies add this kind implants to their product portfolio. As mean reason, the growing demand from patients for metal-free restorations can be identified. However, applying zircon...
Article
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Genezingsprocessen worden gemedieerd door een scala aan intracellulaire en extracellulaire reacties die gestuurd worden door eiwitsignalen. Bloedplaatjes zijn verantwoordelijk voor dit genezingsproces door de vorming van een bloedstolsel en het vrijkomen van groeifactoren. Bloedplaatjesrijk fibrine (PRF) is een fibrinenetwerk waarin mediatoren zoal...
Article
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Aim The aim of this prospective study was to determine the influence of vertical soft tissue thickness on bone level changes in platform-switched implants placed eqicrestally or subcrestally and restored with screw-retained or cement-retained restorations. Methods Platform-switched bone-level implants were placed in a single stage manner in the pos...
Article
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The actual pandemic caused by the highly virulent SARS-CoV-2 virus has an enormous impact on daily dental services and therefore changed the future approach towards dentistry. The corona virus became a game changer in the environmental, clinical, psychological and economical field. Several new recommendations were introduced to create a safer work...
Article
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The pandemic caused by the SARS-CoV-2 virus lead to a near-worldwide lockdown, had a disastrous impact on daily dental services and also completely changed the future approach towards medicine and dentistry. This article focuses on the impact of coronavirus on the field of implant dentistry. In particular, the environmental, clinical and psychol...
Article
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Editorial note: This is the second of a two-part article series. The first part, involving an introduction, a historical context and a chapter on composition, was published earlier this year in the 1/20 issue of ceramic implants.
Article
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Die Disziplin der zahnärztlichen Implantologie entwickelt sich stetig. Heutzutage werden zunehmend „Hightech“-Ansätze verfolgt, mit denen sich klinische Behandlungserfolge weiter optimieren lassen. Implantate wurden ursprünglich freihändig gesetzt, wohingegen heute ein großer Teil an Eingriffen mittels computergeführter Chirurgie und sogar nav...
Article
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Use of ceramic implants in dentistry. Part 1.
Article
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The use of Zirconia as implant material.
Article
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The discipline of dental implant-ology is developing steadily. Nowadays, "high-tech" approaches are becoming increasingly common, which optimizes clinical treatment successes. Where implants were originally hands-free installed, today a large part of the interventions uses computer-guided surgery or even navigated implantation. Also, the complete d...
Article
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German - article on the implant-related causes of bad breath.
Article
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Although titanium is actually still the main material of choice to produce dental implants, there seems to be nowadays an obvious trend to fabricate these implants from more biocompatible materials. For the latter zirconia shows excellent conditions. Moreover, zirconia offers the dentist also the advantage to work with a more aesthetic solution. Al...
Article
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“For the moment titanium is still the golden standard as material for the fabrication of dental implants, but since it gets obvious that titanium is not a harmless material for intra-oral use, research focuses more and more on ceramic implant materials”
Article
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Article
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There are many methods and varied protocols for examining halitosis. Chemical and enzymatic tests determine the presence of bacterial species and their metabolic products or enzymes in the mouth, while halitometers precisely quantify gases but not halitosis itself. Examinations by the human nose (ie, self assessment, feedback from others, or organo...
Research
Full-text available
Editorial publication on oral cancer.
Article
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Halitosis or bad breath is a common problem that affects nearly 25% of the population. More than three quarters of the problems originate in the oral cavity. The main causes here are chronic or acute periodontitis/gingivitis and tongue coating. 10% of the odors are causes by ENT problems, such as tonsillitis and/or post-nasal drip. The final remain...
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Article
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Halitosis, bad breath or oral malodour are all synonyms for the same pathology. Halitosis has a large social and economic impact. For the majority of patients suffering from bad breath, it causes embarrassment and affects their social communication and life. Moreover, halitosis can be indicative of underlying diseases. Only a limited number of scie...
Article
Full-text available
Bacterial adhesion to intra-oral, hard surfaces is firmly influenced by the surface roughness of these structures. Previous studies showed a remarkable higher subgingival bacterial load on rough surfaces when compared to smooth sites. More recently, the additional effect of a further smoothening of intra-oral hard surfaces on clinical and microbiol...
Article
Full-text available
Gingivitis en parodontitis worden veroorzaakt door accumulatie van bacteriën op gebitselementen. Het onderdrukken of elimineren van paropathogene bacteriën in de verdiepte pocket is een belangrijk doel van de parodontale behandeling. Zowel de niet-chirurgische (sealing en root planen) als de chirurgische behandeling van parodontitis resulteren in e...
Article
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An overview is presented on the etiology, diagnosis, and therapy of halitosis. Results are given of our multidisciplinary halitosis outpatient department started in 1994. The team consists of ENT specialists and paradontologists, occasionally assisted by a psychiatrist. The oral odor is confirmed with a halitometer (Interscan Corporation, Model RH-...
Article
Recent studies showed the clinical benefits of a one stage full-mouth disinfection, when compared to the worldwide standard treatment strategy of consecutive root planings per quadrant without proper disinfection of the remaining intraoral niches. The purpose of this study was to investigate the microbiological benefits of such a one stage full-mou...
Article
Full-text available
This study was undertaken to assess patients' response to their treatment at a multidisciplinary oral malodor clinic. In 4 years, a multidisciplinary breath odor clinic in Belgium examined 406 patients. The team consisted of an ear, nose, and throat specialist, a periodontologist, occasionally a specialist in internal medicine, and, more recently,...
Article
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The purpose of this study was to detect the relative contribution of Porphyromonas gingivalis, Fusobacterium nucleatum, and Prevotella intermedia in the production of oral malodor. The volatile sulfur compounds produced by these bacteria in vitro were measured semiquantitatively by a portable sulfide monitor. Samples from the tongue, tonsils, and p...
Article
Sampling is the first and most important step in the bacterial analysis of periodontal or endodontal infections. Sterile paperpoints are the ultimate tool to perform the sampling. Sampling is preferably done under continuous CO2-flushing, to preserve an anaerobic environment for the bacteria. For the dilution and the transport of the bacteria, Redu...
Article
Full-text available
Bad breath, or halitosis, affects between 50 and 65% of the population. Despite its frequency, this problem is often unaccepted and declared taboo. In about 8% of the cases, bad breath is related to an ENT pathology (sinusitis, tonsillitis, ...). More rarely it is caused by a metabolic (diabetes, trimethylaminuremia, ...) or gastric dysfunction. Ni...
Article
Sampling is the first and most important step in the bacterial analysis of periodontal or endodontal infections. Sterile paperpoints are the ultimate tool to perform the sampling. Sampling is preferably done under continuous CO2-flushing, to preserve an anaerobic environment for the bacteria. For the dilution and the transport of the bacteria, Redu...
Article
To review the results of a multidisciplinary approach on halitosis. Descriptive. University Hospital Leuven, Belgium. Review of the data on etiology, diagnosis and therapy of halitosis, obtained by a multidisciplinary team consisting of ENT specialists, periodontologists and a psychiatrist. Malodour was confirmed by a halimeter. 491 patients, equal...
Article
Full-text available
A treatment for periodontal infections often consists of consecutive rootplanings (per quadrant, at a 1- to 2-week interval), without a proper disinfection of the remaining intra-oral niches (untreated pockets, tongue, saliva, mucosa and tonsils). Such an approach, could theoretically lead to a reinfection of previously-treated pockets. The present...
Article
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Besides an atraumatic procedure, aseptic techniques during surgery have been suggested to have a positive impact on the predictability of osseointegration. To avoid an infection of the surgical field, coverage of the face of the patient (drapes) and nose (surgical mask, drape and plastic film) were advocated in order to reduce airborne infections a...
Article
The roughness of intraoral hard surfaces can influence bacterial plague retention. The present review evaluates the initial surface roughness of several intraoral hard materials, as well as changes in this surface roughness as a consequence of different treatment modalities. Articles found through Medline searches were included in this review if th...
Article
The oral cavity offers a range of different niches where periodontopathogens can adhere and survive (e.g. the mucosa, the tongue, the tonsils, the saliva and all intra-oral hard surfaces such as teeth, dentures, oral implants). Transmission of bacteria from one niche to another is likely to occur. Recent studies, for example, illustrated that initi...
Article
A classical treatment for chronic adult periodontitis consists of four to six consecutive sessions of scaling and root planing at a 1- to 2-week interval. Such a so-called "quadrant or sextant therapy" might result in a reinfection of a previously disinfected area by bacteria from an untreated region. The purpose of this study was to investigate, o...
Article
The recognition of the microbial origin and the specificity of periodontal infections has resulted in the development of several adjunctive therapies (antibiotics and/or antiseptics) to scaling and root planing in the treatment of chronic adult periodontitis. This article aims to review the "additional" effect of a subgingival irrigation with chlor...
Article
Periodontal probes have previously been shown to harbor several bacterial types or species after probing periodontally diseased pockets. This study aims to identify and quantify periodontopathogens that may adhere to a periodontal probe by culturing techniques. It also examines the probe's roughness on its capability to collect bacteria, comparing...
Article
Full-text available
Bacterial adhesion to intra-oral, hard surfaces is firmly influenced by the surface roughness to these structures. Previous studies showed a remarkable higher subgingival bacterial load on rough surfaces when compared to smooth sites. More recently, the additional effect of a further smoothening of intra-oral hard surfaces on clinical and microbiol...
Article
A standard periodontal treatment consists of 4 to 6 scalings and rootplanings at a 1- to 2-week interval, which allows reinfection of a previously disinfected area before completion of the treatment. The present pilot study aims to examine the microbiological long-term effects of a full-mouth disinfection. 10 patients with advanced chronic periodon...
Article
The roughness of intraoral hard surfaces plays an important role in bacterial adhesion and colonization. Earlier studies have shown that rough surfaces accumulate up to 25 times more subgingival plaque than do smooth sites. In the present study, the influence of surface smoothing was studied. In six partially edentulous patients waiting for a fixed...
Article
Full-text available
In a standard periodontal treatment strategy with consecutive root planings (per quadrant at a one- to two-week interval), re-infection of a disinfected area might occur before completion of the treatment. This study examines, both clinically and microbiologically, whether a full-mouth disinfection within 24 hours significantly improves the outcome...
Article
Inastandard periodontal treatment strategy with consecutive rootplanings (per quadrant ataone-totwo-week interval), re-infection ofadisinfected areamightoccur before completion ofthetreatment. This study examines, bothclinically andmicrobiologically, whether afull-mouth disinfection within 24hours significantly improves theoutcome ofperiodontal tre...
Article
In the oral cavity, an open growth system, bacterial adhesion to the non-shedding surfaces is for most bacteria the only way to survive. This adhesion occurs in 4 phases: the transport of the bacterium to the surface, the initial adhesion with a reversible and irreversible stage, the attachment by specific interactions, and finally the colonization...
Article
Full-text available
This study examined in vitro the existence of microbial leakage along the components of the Brånemark implant system. Thirty-two implant/abutment assemblies were installed in a liquid blood medium previously inoculated with oral micro-organisms. To examine the leakage at the implant-abutment interface, 16 assemblies were partially immersed. The rem...
Article
Full-text available
The influence of surface free energy on supra- and subgingival plaque microbiology was examined in 9 patients with functional fixed prostheses supported by endosseous titanium implants. Two abutments (trans-mucosal part of the 2 stage implant) were replaced by either a new titanium abutment or a fluor-ethylene-propylene (FEP) coated abutment per su...
Article
Previous clinical studies illustrated a positive correlation between the rate of “supragingival” plaque maturation and both the free energy and roughness of the intraoral hard surfaces (teeth, prostheses, implants).The present review of the literature aims to examine the clinical importance of these parameters especially in the “subgingival” enviro...
Article
Based on the specific plaque theory in periodontology, several chairside tests have been introduced for the microbiological examination of periodontal patients. For the majority of these patients, however, a standard therapy (root planing in combination with good oral hygiene) results in a favorable outcome. Therefore, only for a small minority of...
Article
Plaque sampling is the first but also one of the most important steps in a microbiological examination. Different devices exist to take a sample, each with their own characteristics. Sterile paperpoints and curettes are most commonly used, but select a different flora. Isolation of the sample side is of utmost importance to prevent contamination, b...
Article
Full-text available
Clinical studies have reported a positive correlation between the surface roughness of teeth or implants and the rate of supragingival and subgingival plaque maturation. This study compared the surface characteristics of abutments from different implant systems (Astra Tech, Bonefit, Brånemark, Core-Vent, IMZ, and Steri-Oss). For each system, two ab...
Article
Full-text available
In nine patients with fixed prostheses supported by endosseous titanium implants, 2 titanium abutments (trans-mucosal part of the implant) were replaced by either an unused standard abutment or a roughened titanium abutment. After 3 months of habitual oral hygiene, plaque samples were taken for differential phase-contrast microscopy, DNA probe anal...

Questions

Questions (2)
Question
Dear colleagues,
I have prepared an interesting project on halitosis to start-up a (multi-center) study. Is there any institution or university interested to join forces?
To project was checked by several authorities in the field of bad breath. Moreover, there is not much money needed to get it started.
Please contact me on:
- 0031653666824
Kind regards,
Curd Bollen
Question
Dear colleagues,
I look for any kind of academic institution worldwide to collaborate in dental/periodontal research or lecturing/teaching.
Topics: periodontology / implantology / halitosis / lasers in dentistry.
Please contact me
Curd

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Projects

Projects (3)
Project
Prospective clinical study of early loaded BioniQ implants with BIO-Surface.