You will be presented with the full text of a biomedical research paper. Please write an abstract for this paper. Your response should include the abstract and no additional text.

Paper text:
dental erosion ( de ) has become more frequent during the last decades , especially in children and young people . increased consumption of carbonated drinks but also endogenous factors are involved in de etiology .
associated esthetic , phonetic and masticatory dysfunctions are related to advanced generalized erosions which affect the entire dental arches . the important objective in the dental erosion therapy is the minimally invasive crown reconstruction .
full arch reconstructions are necessary in advanced generalized de and an esthetic project must be developed . in this case report
we present a treatment plan option in a patient presenting de and lateral partial edentulous spaces .
when the patient presents tooth loss and severe de , treatments involving fixed partial dentures ( fpd ) and all ceramic reconstructions are recommended to obtain improved esthetics and good functionality . in terms of treatment cost , advanced stages of de
therefore , sustained prophylaxis has to be done to avoid de evolution : diet control has to be effective in patients with evidenced extrinsic factors . in endogenous de caused by bulimia , anorexia , gastro - esophageal reflux disease ( gerd ) , or other gastric diseases involving vomiting , associated etiologic therapy
a 47-year - old female complains of masticatory and esthetic discomfort after a mandibular bridge fracture
. she also demands esthetic restorations on maxillary frontal teeth , which became progressively darker and irregular .
symptoms of gerd were related to a psychological trauma and were subsided at the time of study . after the clinical examination of the maxillary arch , we found de and composite cervical restorations on the central incisors ; used composite veneers were present on the lateral incisors .
de could not be evaluated on other maxillary teeth because they were all recovered by metal - ceramic fpd : an fpd on 13 , 15 and 17 restoring the missing 14,16 and an extended fpd on 23 and 27 with intermediary for 24 , 25 , 26 ( fig .
a fractured mandibular fpd for the missing 35 , 36 , was causing masticatory and esthetic disorders ; the mesial abutment tooth , 34 , was extracted one year ago .
a metal - ceramic fpd was found on 44 , 45 , 47 restoring the 46 missing tooth ( fig 1 ) .
overload abutment teeth 23 , 27 show gingival recession , and x - ray examination shows important bone loss on 27 .
maxillary central incisors margins and buccal faces are affected by de , resulting in important tooth wear with shape and color modifications ( fig .
1 ) . wear composite veneers on the lateral maxillary incisors are also non - aesthetic .
application of de questionnaire reveals few alimentary factors involved : citric fruits preference and daily carbonated drinks consumption .
after clinical examination , radiologic and basic erosion wear examination ( bewe ) , the esthetic analysis was performed .
all existing fpds had to be removed and a full maxillary arch reconstruction was decided , using dental and implant supported fixed prosthesis . eroded maxillary incisors will be restored by ceramic veneers improving esthetics and allowing good biological integration .
bonded cementation of ceramics result in strong restorations when precise fit of the veneers avoid excessive space for the cement .
a metal - ceramic fpd on 13 , 15 and 17 will successfully restore the missing 14 and 16 using modified saddle intermediaries ( fig .
2 ) . the prognosis of 27 as abutment tooth is uncertain because of reduced bone support .
two implants are required for an implant supported fpd restoring 24 , 25 , 26 edentulous space .
good health and favorable bone condition allow us to do a metal - ceramic implant supported fpd in the three - unit edentulous space of 34 , 35 , 36 .
this treatment plan is favorable to bone maintenance , fpd resistance and avoid 33 preparation ( fig .
a metal - ceramic fpd with abutment teeth 44 , 45 , 47 was decided .
existing endodontic treatments on 44 , 45 were accurate from a radiological point of view .
after therapeutic decision was made , we removed the fpds and implants were inserted . after insertion , the implants were allowed to integrate .
six months later , a new radiologic control was performed , implants were uncovered and healing caps were placed . after two weeks , a first impression in irreversible hydrocolloid was taken and open custom tray was fabricated .
impression copings were adapted to implants and splinted with resin for accurate transfer of implants position to the master cast .
teeth preparations were finalized and one - step technique , maxillary and mandibular impressions were made .
the metal fpd infrastructures were made in the laboratory ( fig . 2 , 3 ) and checked for correct fit on the abutment teeth in the oral cavity .
the symmetry of the final metal - ceramic reconstructions adequately solves the esthetic aspects regarding color , shape , position and dimension of the new prosthetic constructions
. rose porcelain was used to make an esthetic gingival appearance on implant supported fpds ( fig .
the patient demanded whiter teeth ; consequently we replaced the existing fillings and made a bleaching two weeks before making the veneers .
esthetic criteria was verified on ceramics ; teeth visibility and correct position of incisors margins were phonetically and esthetically evaluated in front and lateral view ( fig . 5 , 6 ) .
therefore , an implant - supported fpd is preferred to restore extended partial edentulous spaces when local and general conditions are favorable ; crest maintenance is better when functional stimulus is transmitted to the bone by implants . in the presented case
the advanced tooth wear on central maxillary incisors was due to dominant erosive mechanism caused by gerd and associated with abrasion and attrition
. good prognosis of the prosthetic treatment depends on diet education and good general condition ; gerd remission is favorable for post - therapeutic maintenance .
the regular six - month control was performed after treatment , to achieve good maintenance .
full arch esthetic restoration can change the patient s life by improving functional comfort and self confidence .
laborious steps are involved and long time temporizations have to be accepted by the patient before starting with the treatment plan decision .
diseases such as gastroesophageal reflux disease ( gerd ) , bulimia , anorexia , and extrinsic alimentary factors may cause dental erosion ( de ) . 
 the minimally invasive therapeutic attitude preserves the remaining healthy tooth structure . in the earlier stages , the direct restoration of dental lesions is possible , using composite materials . in advanced stages of de , 
 prosthetic treatments are recommended for stable esthetic and functional results . 
 we present a case of de in a partially edentulous patient who benefited from a complex therapy . 
 the prosthetic project of the case involves ceramic veneers associated with dental and implant supported fixed prosthesis for the restoration of esthetics , mastication , phonetics and their maintenance .