Implants and Prosthetics in English: From Fixture to Denture

Strictly, implant means only the fixture — the titanium part in bone. The visible tooth is the implant crown, and the abutment connects the two. Patients call the whole assembly an implant; catalogues mean only the first part.

This list covers 91 terms: implant components, bone grafting, fixed prosthetics, removable dentures and the laboratory stage.

Who this is for

  • Patients — understanding a treatment plan and an estimate abroad
  • Clinicians and technicians — lab orders and English-language catalogues
  • Students — prosthodontics and implantology as examined

Word list to learn

Download PDF
Word
dental implant ˈdentəl ˈɪmplɑːnt
implant ˈɪmplɑːnt
implant fixture ˈɪmplɑːnt ˈfɪkstʃə
abutment əˈbʌtmənt
healing abutment ˈhiːlɪŋ əˈbʌtmənt
cover screw ˈkʌvə skruː
abutment screw əˈbʌtmənt skruː
implant crown ˈɪmplɑːnt kraʊn
screw-retained crown skruː rɪˈteɪnd kraʊn
cement-retained crown sɪˈment rɪˈteɪnd kraʊn
osseointegration ˌɒsiəʊˌɪntɪˈɡreɪʃən
implant placement ˈɪmplɑːnt ˈpleɪsmənt
immediate implant ɪˈmiːdiət ˈɪmplɑːnt
delayed implant dɪˈleɪd ˈɪmplɑːnt
immediate loading ɪˈmiːdiət ˈləʊdɪŋ
two-stage surgery ˈtuː steɪdʒ ˈsɜːdʒəri
one-stage surgery ˈwʌn steɪdʒ ˈsɜːdʒəri
osteotomy ˌɒstiˈɒtəmi
primary stability ˈpraɪməri stəˈbɪləti
insertion torque ɪnˈsɜːʃən tɔːk
healing period ˈhiːlɪŋ ˈpɪəriəd
impression coping ɪmˈpreʃən ˈkəʊpɪŋ
implant analogue ˈɪmplɑːnt ˈænəlɒɡ
surgical guide ˈsɜːdʒɪkəl ɡaɪd
guided surgery ˈɡaɪdɪd ˈsɜːdʒəri
implant failure ˈɪmplɑːnt ˈfeɪljə
peri-implantitis ˌperiɪmplɑːnˈtaɪtɪs
peri-implant mucositis ˌperiˈɪmplɑːnt ˌmjuːkəˈsaɪtɪs
bone graft bəʊn ɡrɑːft
bone augmentation bəʊn ˌɔːɡmenˈteɪʃən
autograft ˈɔːtəʊɡrɑːft
allograft ˈæləʊɡrɑːft
xenograft ˈzenəʊɡrɑːft
synthetic bone substitute sɪnˈθetɪk bəʊn ˈsʌbstɪtjuːt
guided bone regeneration ˈɡaɪdɪd bəʊn rɪˌdʒenəˈreɪʃən
barrier membrane ˈbæriə ˈmembreɪn
sinus lift ˈsaɪnəs lɪft
sinus augmentation ˈsaɪnəs ˌɔːɡmenˈteɪʃən
ridge augmentation rɪdʒ ˌɔːɡmenˈteɪʃən
ridge split rɪdʒ splɪt
block graft blɒk ɡrɑːft
dental crown ˈdentəl kraʊn
full-coverage crown fʊl ˈkʌvərɪdʒ kraʊn
partial crown ˈpɑːʃəl kraʊn
porcelain crown ˈpɔːsəlɪn kraʊn
zirconia crown zɜːˈkəʊniə kraʊn
metal-ceramic crown ˈmetəl səˈræmɪk kraʊn
gold crown ɡəʊld kraʊn
temporary crown ˈtempərəri kraʊn
provisional crown prəˈvɪʒənəl kraʊn
crown preparation kraʊn ˌprepəˈreɪʃən
tooth preparation tuːθ ˌprepəˈreɪʃən
finish line ˈfɪnɪʃ laɪn
shoulder margin ˈʃəʊldə ˈmɑːdʒɪn
chamfer margin ˈtʃæmfə ˈmɑːdʒɪn
dental bridge ˈdentəl brɪdʒ
fixed bridge fɪkst brɪdʒ
cantilever bridge ˈkæntɪliːvə brɪdʒ
Maryland bridge ˈmeərilənd brɪdʒ
pontic ˈpɒntɪk
retainer crown rɪˈteɪnə kraʊn
abutment tooth əˈbʌtmənt tuːθ
cementation ˌsiːmenˈteɪʃən
try-in ˈtraɪ ɪn
bite registration baɪt ˌredʒɪˈstreɪʃən
shade selection ʃeɪd sɪˈlekʃən
denture ˈdentʃə
complete denture kəmˈpliːt ˈdentʃə
full denture fʊl ˈdentʃə
partial denture ˈpɑːʃəl ˈdentʃə
removable partial denture rɪˈmuːvəbəl ˈpɑːʃəl ˈdentʃə
immediate denture ɪˈmiːdiət ˈdentʃə
overdenture ˈəʊvədentʃə
implant-supported denture ˈɪmplɑːnt səˈpɔːtɪd ˈdentʃə
implant-retained denture ˈɪmplɑːnt rɪˈteɪnd ˈdentʃə
All-on-4 ˈɔːl ɒn fɔː
denture clasp ˈdentʃə klɑːsp
denture base ˈdentʃə beɪs
denture flange ˈdentʃə flændʒ
reline ˌriːˈlaɪn
rebase ˌriːˈbeɪs
denture repair ˈdentʃə rɪˈpeə
sore spot sɔː spɒt
false teeth fɔːls tiːθ
framework ˈfreɪmwɜːk
metal framework ˈmetəl ˈfreɪmwɜːk
casting ˈkɑːstɪŋ
digital scan ˈdɪdʒɪtəl skæn
intraoral scanner ˌɪntrəˈɔːrəl ˈskænə
CAD/CAM restoration ˌkædkæm ˌrestəˈreɪʃən
milling ˈmɪlɪŋ

Useful phrases

Click the icon to hear the pronunciation

Phrase
What are the options for replacing a missing tooth?
An implant, a bridge, or a denture.
How long does the whole implant treatment take?
Usually three to six months from placement to crown.
Is there enough bone for an implant?
You will need a bone graft first.
The implant is placed into the jaw under local anaesthetic.
We leave it to heal before fitting the crown.
Do implants last for life?
They can, if you keep them clean and come for check-ups.
This bridge uses the two neighbouring teeth for support.
The denture will feel bulky at first.
It's rubbing here — can you adjust it?
Take the denture out at night and keep it in water.

Implant, Bridge or Denture: Replacing a Missing Tooth

Click the speaker icon to hear the full dialogue

Patient
I lost a lower molar last year. What can be done about the gap?
Dentist
Three options: a dental implant, a dental bridge, or a partial denture.
Patient
Which lasts longest?
Dentist
An implant, usually. It replaces the root itself and doesn't involve the neighbouring teeth.
Patient
What's involved with a bridge?
Dentist
I would prepare the two adjacent teeth as abutment teeth and cement a bridge with a pontic in the gap.
Patient
So healthy teeth get drilled?
Dentist
Yes — that is the main drawback. With an implant they stay untouched.
Patient
How does the implant work?
Dentist
A titanium fixture is placed in the bone. Over about three months it fuses with the bone — that is osseointegration.
Patient
Is three months of waiting normal?
Dentist
That is the healing period. You would wear a temporary while we wait.
Patient
Do I have enough bone?
Dentist
The scan shows the ridge has narrowed. You would need a small bone graft at the time of placement.
Patient
And after it heals?
Dentist
I attach an abutment, take a digital scan, and fit an implant crown on top.
Patient
How do I look after it?
Dentist
Like a natural tooth, plus interdental cleaning. Neglect leads to peri-implantitis, which can loosen the implant.

Common mistakes

Avoid these common mistakes

Wrong The laboratory delivered a fixed prothesis on Friday.
Correct The laboratory delivered a fixed prosthesis on Friday.

The English word keeps the s from Greek prosthesis: prosthesis in the singular, prostheses in the plural, pronounced /prɒsˈθiːsiːz/. The reduced spelling prothesis mirrors French prothèse, German Prothese and Spanish prótesis and is simply wrong in English. The related forms add a d as well: the adjective is prosthetic, the discipline is prosthodontics, and the specialist is a prosthodontist. In American usage prosthetic also appears as a noun, but prosthesis remains the safer choice in clinical writing.

Wrong My body rejected the implant after two months.
Correct The implant failed to osseointegrate and was lost after two months.

Titanium is not recognised by the immune system the way donor tissue is, so rejection is the wrong frame. The umbrella term is implant failure, subdivided by timing and cause: early failure, meaning the fixture never achieved osseointegration, and late failure from peri-implantitis, occlusal overload or smoking. With patients the clear phrasing is the implant did not integrate with the bone. Reserve reject for transplanted tissue, where the immunology actually applies.

Wrong He needs a bridge from three teeth to close the gap.
Correct He needs a three-unit bridge to close the gap.

Bridges are described in units, counting every component in the span: a three-unit bridge has two retainer crowns on the abutment teeth and one pontic replacing the missing tooth. A five-unit bridge might carry two pontics. The teeth being used for support are the abutments, so a clinician says a three-unit bridge from the canine to the second premolar, naming the span rather than the count of teeth. Variants include the cantilever bridge, supported on one side only, and the Maryland bridge, bonded with wings.

Wrong The dentist made a print of my teeth and sent it to the lab.
Correct The dentist took an impression of my teeth and sent it to the lab.

The collocation is take an impression — we will take a final impression today. An impression is the negative record; the plaster or stone cast, also called the model or die, is the positive poured from it. Confusing the two matters in lab communication. The digital equivalent is a digital scan captured with an intraoral scanner. Associated vocabulary: impression tray, alginate, polyvinyl siloxane, polyether, and bite registration.

Wrong My implant chipped, so they will replace the implant.
Correct My implant crown chipped, so they will replace the crown.

Patients use implant for the whole assembly, but clinically it names only the fixture placed in bone. The abutment screws into it, and the implant crown sits on top — and it is the crown that chips, loosens or decements. The distinction is practical rather than pedantic: replacing a crown is straightforward, whereas replacing a failed fixture means removal, healing time and often a bone graft. Note also that crowns are either screw-retained, which makes retrieval easy, or cement-retained.

About This List

Fixed against removable: the primary division

All prosthetics divides by how it is held in:

  • fixed — the patient cannot take it out: dental crown, dental bridge, implant crown
  • removable — they can: denture, partial denture, overdenture

At the boundary sits the pair most often confused: an implant-supported denture rests entirely on implants, while an implant-retained denture is only held by them and the load goes through the mucosa. The difference matters for both cost and prognosis. All-on-4 belongs here too.

The removable range in full: complete denture and full denture are synonyms, plus removable partial denture, immediate denture, and the components clasp, denture base, denture flange, denture tooth. Maintenance: reline, rebase, denture repair, and a rubbed spot is a sore spot. The lay term is false teeth.

The three parts of an implant

  1. implant fixture — in the bone
  2. abutment — the connector; during healing a healing abutment or cover screw sits there, secured by the abutment screw
  3. implant crown — the visible part, screw-retained or cement-retained

Careful: abutment has a second, unrelated meaning — an abutment tooth, the natural tooth supporting a bridge. One word, two entirely different objects, and only context separates them.

The surgical stage: implant placement, osteotomy, immediate or delayed implant, one-stage and two-stage surgery, immediate loading, a surgical guide for guided surgery. Impressions use an impression coping with an implant analogue.

A bridge: pontic, abutment tooth, retainer

A bridge has three kinds of element:

  • abutment tooth — the supporting tooth
  • retainer crown — the crown on that tooth
  • pontic — the artificial tooth spanning the gap

Types: fixed bridge, cantilever bridge (supported at one end only), Maryland bridge (adhesive). Note that retainer here is part of a bridge, not an orthodontic retainer.

Crowns: full-coverage crown, partial crown, and by material porcelain, zirconia, metal-ceramic, gold crown, with temporary and provisional crown in the interim. Preparation: crown preparation, tooth preparation, finish line, shoulder margin, chamfer margin. Completion: try-in, bite registration, shade selection, cementation.

Why implants fail

Implantology rests on osseointegration — titanium fusing with bone. Its conditions are primary stability and adequate insertion torque, followed by a healing period.

Where bone is insufficient it is built up: bone graft and bone augmentation, sourced as autograft, allograft, xenograft or synthetic bone substitute, with guided bone regeneration and a barrier membrane. Larger procedures: sinus lift and sinus augmentation, ridge augmentation, ridge split, block graft.

Complications form a ladder: peri-implant mucositis affects soft tissue only and is reversible; peri-implantitis involves bone loss; implant failure is loss of the implant.

Laboratory: framework, metal framework, casting, digital scan, intraoral scanner, CAD/CAM restoration, milling.

One word, two objects: the ambiguities to watch

  • Abutment is an implant connector and a bridge-supporting tooth
  • Retainer is part of a bridge here, and an orthodontic appliance elsewhere
  • Crown is anatomy, a restoration, or the top of an implant, depending on the chapter
  • Analogue is a lab replica of the fixture, nothing to do with analogue signals
  • Coping is a component, not a verb — an impression coping transfers implant position
  • Loading means putting the implant into function, not adding weight to it

Frequently Asked Questions

Three components. The implant, or implant fixture, is the titanium screw placed in bone. The abutment connects to it, with a healing abutment or cover screw used during healing. The implant crown sits on top and is either screw-retained or cement-retained. Patients use implant for the whole assembly, but notes distinguish all three — and it matters, because a chipped crown and a failed fixture are entirely different problems.

Osseointegration is the direct structural connection between living bone and the titanium surface, with no intervening fibrous tissue. It is what makes an implant work, and it develops over a healing period of several months. At placement the surgeon assesses primary stability, often recorded as insertion torque. Where integration never happens the result is early implant failure.

A bridge is fixed: cemented onto abutment teeth or implants, and not removable by the patient. A partial denture is removable, retained by clasps or precision attachments, and taken out for cleaning. Between them sits the implant-supported or implant-retained denture, which the patient removes but which anchors to implants rather than resting on the tissues.

Bridges are counted in units — every component in the span. A three-unit bridge comprises two retainer crowns on the abutment teeth and one pontic replacing the missing tooth; a five-unit bridge might carry two pontics. Variants include the cantilever bridge, supported at one end only, and the Maryland bridge, bonded with metal or ceramic wings to the backs of adjacent teeth.

Prosthesis is the noun and prosthetic the adjective: a fixed prosthesis, a prosthetic crown. The plural is prostheses, pronounced /prɒsˈθiːsiːz/. American usage also allows prosthetic as a noun, but prosthesis is safer in clinical writing. Note the spelling — English keeps the s, unlike French prothèse, German Prothese and Spanish prótesis — and the discipline is prosthodontics, with a d.

The impression is the negative record taken in the mouth with an impression tray and a material such as alginate or polyvinyl siloxane. The cast, also called the model or die, is the positive poured from it in dental stone. The verb is take an impression, never make a print. Digitally the equivalent is a digital scan from an intraoral scanner.

Peri-implantitis is inflammation around an implant with progressive bone loss, the implant equivalent of periodontitis. The earlier, reversible stage — inflammation of the soft tissue only — is peri-implant mucositis. Risk factors mirror periodontal disease: plaque accumulation, smoking and poor implant maintenance. Left untreated it leads to late implant failure.

Learn words more effectively in the app

Spaced repetition, smart trainings and progress tracking.
Download OneMoreWord and remember words forever

App Store Google Play

Related lists

Mouth Anatomy in English

Tooth Anatomy in English

Types of Teeth in English

Dental Symptoms in English

Dental Diseases in English